Thai baht

Thai baht
บาทไทย (Thai)
	Baht banknotes and coins issued by the Bank of Thailand
ISO 4217
Code	THB (numeric: 764)
Subunit	0.01
Unit
Plural	The language(s) of this currency do(es) not have a morphological plural distinction.
Symbol	฿‎
Denominations
Subunit
1⁄100	satang
Banknotes
Freq. used	฿20, ฿50, ฿100, ฿500, ฿1000
Coins
Freq. used	25, 50 satang, ฿1, ฿2, ฿5, ฿10
Rarely used	1, 5, 10 satang
Demographics
Official user(s)	Thailand
Unofficial user(s)	Cambodia; Laos; Myanmar; Vietnam;
Issuance
Central bank	Bank of Thailand
Website	www.bot.or.th
Printer	Note Printing Works of the Bank of Thailand
Mint	Royal Thai Mint
Website	www.royalthaimint.net
Valuation
Inflation	1.0%
Source	Inflation (annual %), World Bank, 2011–2015

The baht (/bɑːt/; Thai: บาท, pronounced [bàːt]; sign: ฿; code: THB) is the official currency of Thailand. It is divided into 100 satang (สตางค์, pronounced [sà.tāːŋ]). Prior to decimalisation, the baht was divided into eight fueang (เฟื้อง, pronounced [fɯá̯ŋ]), each of eight at (อัฐ, pronounced [ʔat̚]). The issuance of currency is the responsibility of the Bank of Thailand. SWIFT ranked the Thai baht as the 10th-most-frequently used world payment currency as of December 2023.^[1]

History

The Thai baht, like the pound, originated from a traditional unit of mass. Its currency value was originally expressed as that of silver of corresponding weight (now defined as 15 grams), and was in use probably as early as the Sukhothai period in the form of bullet coins known in Thai as photduang.^[2] These were pieces of solid silver cast to various weights corresponding to a traditional system of units related by simple fractions and multiples, one of which is the baht. These are listed in the following table:^[3]^[4] Though the coins themselves have names like: solot, siao, phai, etc, the formal division of the Thai Baht/Tical is 1 baht = 8 fueang = 64 at. This means that one baht is divided into eight fueang, and each one fueang is divided into 8 at. Currently, the Thai baht do not employ the at as a subunit, but the at is the current subunit of the Laos Kip.

Unit (RTGS)	Thai spelling	Relative value	Value relative to		Notes
Unit (RTGS)	Thai spelling	Relative value	Baht	Satang	Notes
Bia	เบี้ย	1⁄100 at	1⁄6400	0.0156	Bia is Thai for cowry, the shell of which was used as a trade medium of the same value.
Solot	โสฬส	1⁄16 fueang	1⁄128	0.78	Solot here literally means sixteen or sixteenth, referring to the fractional amount relative to a fueang.
At	อัฐ	1⁄8 fueang	1⁄64	1.56	Likewise, at literally means eight.
Siao/Phai	เสี้ยว/ไพ	1⁄4 fueang	1⁄32	3.125	Siao means quarter.
Sik	ซีก	1⁄2 fueang	1⁄16	6.25	Sik means half.
Fueang	เฟื้อง	1⁄8 baht	1⁄8	12.5	The smallest silver bullet coins available in the market.
Salueng	สลึง	1⁄4 baht (0.25 baht, 25 satang)	1⁄4	25	Thai version of the mace. It is also the equivalent of the Cambodian salong, and Burmese pya.
Song salueng	สองสลึง	1⁄2 baht (0.50 baht, 50 satang)	1⁄2	50
Baht	บาท		1	100	It is also the equivalent of the Cambodian baat, and Burmese kyat. Its alternative name is the tical.
Tamlueng	ตำลึง	4 baht	4	400	Thai version of the tael.
Chang	ชั่ง	20 tamlueng	80	8000	Thai version of the catty.
Hap	หาบ	80 chang	6400	640000

Siamese Pre-Decimal Tical System

That system was in use up until 1897, when the decimal system devised by Prince Jayanta Mongkol, in which one baht = 100 satang, was introduced by his half-brother King Chulalongkorn along with the demonetization of silver bullet coins on 28 October 1904 after the end of silver bullet coin production by the opening of Sitthikarn Royal Mint in 1857.^[5] However, coins denominated in the old units were issued until 1910, and the amount of 25 satang is still commonly referred to as a salueng, as is the 25-satang coin.

Until 27 November 1902, the baht was fixed on a purely silver basis, with 15 grams of silver to the baht. This caused the value of the currency to vary relative to currencies on a gold standard. From 1856 to 1864, the values of certain foreign silver coins were fixed by law, with 5 baht = 3 Spanish dollar = 7 Indian rupees.^[6] Before 1880 the exchange rate was fixed at 8 baht per pound sterling, falling to 10 to the pound during the 1880s.

In 1902, the government began to increase the value of the baht by following all increases in the value of silver against gold but not reducing it when the silver price fell. Beginning at 21.75 baht per pound sterling, the currency rose in value until, in 1908, a fixed peg to the British pound sterling was established of 13 baht per pound. This was revised to 12 baht in 1919 and then, after a period of instability, to 11 baht in 1923. During World War II, the baht was fixed at a value of one Japanese yen on 22 April 1942.^[7]^[8]

From 1956 until 1973, the baht was pegged to the US dollar at an exchange rate of 20.8 baht = one dollar and at 20 baht = 1 dollar until 1978.^[9] ^[10] A strengthening US economy caused Thailand to re-peg its currency at 25 to the dollar from 1984 until 2 July 1997, when the country was affected by the 1997 Asian financial crisis. The baht was floated and halved in value, reaching its lowest rate of 56 to the dollar in January 1998. It rose to 30 per dollar in January 2021.

The baht was originally known to foreigners by the term tical,^[11] which was used in English language text on banknotes until the series 2 1925.^[12]^[13]

Currency symbol

The currency symbol for the baht is ฿ (a latin letter B with a vertical stroke). In 1986, this symbol was given a codepoint for computer use in the Thai Industrial Standard 620-2533 (Thailand's extension of ASCII), at position 0xDF. This national standard was subsequently subsumed into international standards as ISO/IEC 8859-11 ("ISO Latin-Thai"). In turn, the ISO 8859 series were transposed into the Unicode standard,^[14] where the symbol was allocated the codepoint U+0E3F ฿ THAI CURRENCY SYMBOL BAHT.^[15] The symbol is also used for the Panamanian balboa.^[16]

Abbreviation

In Thai usage, the baht (บาท) is legally abbreviated as บ. according to Section 7 of the Currency Act, B.E. 2501.^[17]

Bitcoin

For a time, the baht symbol was appropriated by some as a symbol for Bitcoin, a cryptocurrency. Following representations,^[18] a separate code point (U+20BF ₿ BITCOIN SIGN, a latin letter B with two vertical strokes) was allocated in Unicode version 10.0.^[19]

Square katakana

This article contains special characters. Without proper rendering support, you may see question marks, boxes, or other symbols.

In Unicode 1.0, two codepoints were allocated to the baht, one as the currency symbol in the Thai range and one in the CJK Compatibility block as a square version of the Japanese word for "baht", written in katakana script.^[20] The CJK codepoint, U+332C ㌬ SQUARE PAATU, is documented in subsequent versions of the standard as "a mistaken, unused representation" and users are directed to U+0E3F ฿ THAI CURRENCY SYMBOL BAHT instead.^[21] Consequently, only a few computer fonts have any content for this codepoint and its use is deprecated.^[20]

(The Japanese for "baht" is バーツ (bātsu). However, the reference glyph ⟨㌬⟩ and the character name correspond to パーツ (pātsu, from English "parts").^[20])

Historical symbols used before decimalization

Before decimalization, the Siamese government employed Chinese, Latin, Jawi (Malay), English, Devganari, Khmer and Khom, Lanna, and Burmese scripts in banknotes and coins, as seen. The reason is not clear though it is a common understanding that it is to ease the facilicitation of trade within Siam - though this is not clear. It can also be the case that at the time, the capital, Bangkok (Phra Nakhon) was a multi-cultural city, so as to be more inclusive, the government added various other language onto the currency - though by the second series after the decimalization in the 1900s, the currency was all but monolingual.

圓 - yuán (บาท) : This character was use during the times of Rama 4 to represent Baht, though this was phased out by another character which is in partially and informally used today. The only occurance of this character was in Rama 4's banknote serie.

铢 / 銖 - zhū (บาท) : This character was in use from 1868 - 1925 officially on banknotes to represent Baht. It is unofficially in use today to refer to the Thai baht in general as in 泰銖／泰铢.

銭 / 錢 - qián (สลึง) : This character was in use from 1851 - 1908 officially on banknotes and coins to represent saleung.

方 - fāng (เฟื้อง) : This character was in use from 1851 - 1908 officially on banknotes and coins to represent fuang.

The notation for these chinese character are written like they are in Thai, though there is a caveat: it is written right to left, as was the convention back then, so one baht is written 圓壹 or 銖壹, if there are smaller units involved the notation can write like such: 方銭參圓壹 for one baht, three saleung, and one fuang.

Coins

Photduang coinage

Example of the spanish dollar which was marked with the Siamese government's emblem - marking that it is legal tender.

Cowrie shells from the Mekong River had been used as currency for small amounts since the Sukhothai period. Before 1860, Thailand did not produce coins using modern methods. Instead, a so-called "bullet" coinage was used, consisting of bars of metal, thicker in the middle, bent round to form a complete circle on which identifying marks were stamped.^[22]^[23] Denominations issued included 1⁄128, 1⁄64, 1⁄32, 1⁄16, 1⁄8, 1⁄2, 1, 1+1⁄2, 2, 2+1⁄2, 4, 4+1⁄2, 8, 10, 20, 40 and 80 baht in silver and 1⁄32, 1⁄16, 1⁄8, 1⁄2, 1, 1+1⁄2, 2 and 4 baht in gold. One gold baht was generally worth 16 silver baht. Between 1858 and 1860, foreign trade coins were also stamped by the government for use in Thailand.

Sukhothai and Ayutthaya photduang

Photduang, a form of currency used during the Sukhothai period, was characterized by its longer legs, which created a larger and wider hole in the middle. These coins were primarily made of silver and featured a cut across the front of each leg. This cut served a dual purpose: it authenticated the money and allowed for the quality of the silver to be tested. Over time, as the Sukhothai Kingdom declined and became a vassal state of Ayutthaya—which was established as the capital in 1350—the design of photduang evolved. The coins became rounder with shorter legs, and the central hole, while still present, grew smaller. By the end of this era, the hole disappeared completely. The cuts on the legs also reduced in size and were eventually replaced by a small elliptical nick, known as "Met Kao San," on one side of the coin.^[24]

Thonburi and Rattanakosin photduang

The Thonburi period (1767-1782) and the Rattanakosin period, beginning in 1782, adopted the photduang design from the late Ayutthaya period. The coins from these periods had no central hole, and the legs were even shorter. A key difference was that Thonburi photduang lacked the elliptical nick, whereas the Rattanakosin coins reintroduced this feature, similar to the Ayutthaya coins. Photduang from these later periods typically featured two stamped marks: the dynasty mark on top and the king's personal mark on the front part. The dynasty mark often symbolized the kingdom's ruling dynasty, while the king's personal mark represented the reigning monarch.^[24]

Markings on the photduang

The markings on photduang coins varied across different periods. During the Sukhothai era, some coins bore no marks, while others had up to 11. This variation was because, at that time, individuals and merchants could produce their own money. However, from the Ayutthaya period onward, the production of photduang was monopolized by the government, making it easier to identify coins from each era. Ayutthaya photduang typically bore two marks: the dynasty mark, which could be a spoked wheel symbolizing the "Wheel of Law" from Buddhist teachings or the Chakra (Vishnu's weapon), represented by a pattern of 8 dots surrounding a central dot. The king's personal mark varied with each ruler and included symbols such as a conch shell, a Garuda bird (khrut), an elephant, and an anchor, each symbolizing different aspects of the king's reign or divine associations.^[24]

Photduang timeline

^[25] *continues in the coin section*

Photduang of the Thai tical (Rama III & Rama IV)^[26]
Image	Names		Value		Width (mm)	Weight (g)	Composition	Inscription, description	Date of issue
Image	Primary	Secondary	in silver baht	in gold baht	Width (mm)	Weight (g)	Composition	Inscription, description	Date of issue
	Bia เบี้ย		1⁄6400	1⁄102400	25	1.58	Calcium carbonate	None	1238–1869
	Half Phai กึ่งไพ	At อัฐ	1/64	1/1024	2	0.25	Silver	State ensign of Rattanakosin	1824–1851
	Phai ไพ		1/32	1/512	4	0.5	Silver	State ensign of Rattanakosin Castle	1824–1856
	2 Phai สองไพ	Half Fueang กึ่งเฟื้อง	1/16	1/256	6	1	Silver	State ensign of Rattanakosin Castle	1824–1856
	Fueang เฟื้อง		1/8	1/128	6.5	1.98	Silver	State ensign of Rattanakosin Castle	1824–1856
	Salueng สลึง		1/4	1/64	9	3.7	Silver	State ensign of Rattanakosin Castle	1824–1856
	2 Salueng สองสลึง	Half Baht กึ่งบาท	1/2	1/32	11	7.6	Silver	State ensign of Rattanakosin Castle	1824–1856
	Baht บาท		1	1/16	14.5	15.14	Silver	State ensign of Rattanakosin Castle	1824–1856
	Gold 2 Phai สองไพทอง	Gold Half Fueang กึ่งเฟื้องทอง	1	1/16	5	1	Gold	State ensign of Rattanakosin Phra Maha Mongkut seal	1851–1856
	2 Baht สองบาท	Half Tamlueng กึ่งตำลึง	2	1/8	17.5	30.30	Silver	State ensign of Rattanakosin Castle	1824–1856
	Gold Fueang เฟื้องทอง		2	1/8	6	1.5	Gold	State ensign of Rattanakosin Phra Maha Mongkut seal	1851–1856
	4 Baht สี่บาท	Tamlueng ตำลึง	4	1/4	23.5	60.50	Silver	State ensign of Rattanakosin Castle	1824–1856
	Gold Salueng สลึงทอง		4	1/4	8	3.7	Gold	State ensign of Rattanakosin Phra Maha Mongkut seal	1851–1856
	Gold 2 Salueng สองสลึงทอง	Gold Half Baht กึ่งบาททอง	8	1/2	9.5	7.56	Gold	State ensign of Rattanakosin Phra Maha Mongkut seal	1851–1856
	Gold Baht บาททอง		16	1	12	15.14	Gold	State ensign of Rattanakosin Phra Maha Mongkut seal	1851–1856
	Gold 2 Baht สองบาททอง	Gold Half Tamlueng กึ่งตำลึงทอง	32	2	16	30.01	Gold	State ensign of Rattanakosin Phra Maha Mongkut seal	1851–1856
	40 Baht สี่สิบบาท	Half Chang กึ่งชั่ง	40	2.5	48	606.5	Silver	State ensign of Rattanakosin Phra Maha Mongkut seal	1860
	80 Baht แปดสิบบาท	Chang ชั่ง	80	5	59	1216	Silver	State ensign of Rattanakosin Phra Maha Mongkut seal	1859

Predecimal coinage

Rama III (1824–1851) was the first king to consider the use of a flat coin. He did so not for the convenience of traders, but because he was disturbed that the creatures living in the cowrie shells were killed. When he learned of the use of flat copper coins in Singapore in 1835, he contacted a Scottish trader, who had two types of experimental coins struck in England. The king rejected both designs. The name of the country put on these first coins was Muang Thai, not Siam.^[27]^[28]

In 1860, modern style coins were introduced. These were silver 1 sik, 1 fuang, 1 and 2 salung, 1, 2 and 4 baht, with the baht weighing 15.244 grams and the others weight-related. Tin 1 solot and 1 at followed in 1862, with gold 2+1⁄2, 4 and 8 baht introduced in 1863 and copper 2 and 4 at in 1865. Copper replaced tin in the 1 solot and 1 at in 1874, with copper 4 at introduced in 1876. The last gold coins were struck in 1895.

Coin timeline

Issue 1 - 1856

The first issue of coins were commissioned by Rama IV, though it was never brought into circulation. This was one of the first attempt to replace the bullet coins, but few were ever minted without making it into circulation.^[29]


Rama IV, Issue 1
Image		Value		Dimensions (mm)	Weight (g)	Composition	Inscription, description		Date of issue
Obverse	Reverse	Name	Coinage value	Dimensions (mm)	Weight (g)	Composition	Obverse	Reverse	Date of issue
		Fueang เฟื้อง	1 fueang, 1/8 baht	15	1.8	Gold	Phra Maha Mongkut seal	กรุงเทพ (Krung Thep)	1856
		Fueang เฟื้อง	1 fueang, 1/8 baht	12.5	1.85	Silver	Chakra (top), Phra Tao (middle) Phra Maha Mongkut seal (bottom)	none	1856
		Salueng สลึง	1/16 tamlueng, 1/4 baht	16	3.8	Silver	Chakra (top), Phra Tao (middle) Phra Maha Mongkut seal (bottom)	none	1856

Issue 2 - 1860

The first circulating issue of the Siamese coins. This marks the start of the move away from using photduang currency. Though in this era, the photduang are still legal tender. In this series, the lower denominations are made of silver, and the higher ones are made of gold. These higher denominations are given nicknames: Paddueng, Pit, and Tot. Paddueng means thirty two, as in 1/32 of a chang, the other nick name is the chinkang or one chinese tamlueng.^[30] The pit means twenty, as in 1/20 of a chang, the other name is ekkang, or one thai tamlueng.^[31] The tot means ten, as in 1/10 of a chang, the coin is also called thukkang, which means two tamlueng.^[32] In the lower denominations materials such as tin, copper and brass are used, since these are quite low value.

Rama IV, Issue 2
Image		Value		Dimensions (mm)	Weight (g)	Composition	Inscription, description		Date of issue
Obverse	Reverse	Name	Coinage value	Dimensions (mm)	Weight (g)	Composition	Obverse	Reverse	Date of issue
		Solot โสฬส	1/16 fueang, 1/128 baht	23 × 2	4	Tin	Phra Maha Mongkut seal with no star	State ensign of Siam สิบ หก อัน เป็น เฟื้อง 1/16　F.　方　片　六　十	1862
		At อัฐ	1/8 fueang, 1/64 baht	29 × 2	7.2	Tin	Phra Maha Mongkut seal with no star	State ensign of Siam แปด อัน เปน เฟื้อง 1/8　F.　方　片　捌	1862
		Siao เสี้ยว	1/4 fueang, 1/32 baht	22 × 3	7.55 3.55	Copperฺ Brass	Phra Maha Mongkut seal with no star	State ensign of Siam สี่ อัน เปน เฟื้อง 1/4　F.　方　片　四	1865
		Sik ซีก	1/2 fueang, 1/16 baht	29 × 3	10~ 7.61	Copper Brass	Phra Maha Mongkut seal with no star	State ensign of Siam สอง อัน เปน เฟื้อง 1/2　F.　方　片　二	1865
		Half Fueang ครึ่งเฟื้อง	1/2 fueang, 1/16 baht	13 × 1	0.92	Silver	Phra Maha Mongkut seal with no star	State ensign of Siam with no star	1860
		Fueang เฟื้อง	1 fueang, 1/8 baht	16 × 1	1.84	Silver	Phra Maha Mongkut seal with 1 star	State ensign of Siam with 1 star	1860
		Salueng สลึง	1/16 tamlueng, 1/4 baht	22 × 1	3.7	Silver	Phra Maha Mongkut seal with 2 stars	State ensign of Siam with 2 stars	1860
		Half Baht ครึ่งบาท	1/8 tamlueng, 1/2 baht	27 × 1	7.46	Silver	Phra Maha Mongkut seal with 4 stars	State ensign of Siam with 4 stars	1860
		Baht บาท	1/4 tamlueng, 1 baht	31 × 1	15.45	Silver	Phra Maha Mongkut seal with 8 stars	State ensign of Siam with 8 stars	1860
		Half Tamlueng ครึ่งตำลึง	1/2 tamlueng, 2 baht	37 × 2.5	30	Silver	Phra Maha Mongkut seal with 16 stars	State ensign of Siam with 16 stars	1863
		Pot Dueng พัดดึงส์	5/8 tamlueng, 2.5 baht	16 × 0.8	1.83	Gold	Phra Maha Mongkut seal	State ensign of Siam	1863
		Pit พิศ	1 tamlueng, 4 baht	17 × 1	3.88	Gold	Phra Maha Mongkut seal	State ensign of Siam	1863
		Tot ทศ	2 tamlueng, 8 baht	22 × 1	7.42	Gold	Phra Maha Mongkut seal	State ensign of Siam	1863

Issue 3 - 1875

The first series to depict king Rama V, this issue coins are made of copper, silver, and gold. Though, gold is strangely only used in the 1 fueang denomination.^[33] The new shield emblem is introduced in this issue. This shield is separated into three section, drawing from western influences, symbols within these sections represents territories Siam is controlling. The tree headed elephant represents Siamese territory, the bottom-left elephant represent Lan Xang, and the warangka represents Siamese Malaya.

Rama V, Issue 3
Image		Value		Dimensions (mm)	Weight (g)	Composition	Inscription, description		Date of issue
Obverse	Reverse	Name	Coinage value	Dimensions (mm)	Weight (g)	Composition	Obverse	Reverse	Date of issue
		Solot โสฬส	1/16 fueang, 1/128 baht	20 × 1	2.67	Copper	กรุงสยาม (Kingdom of Siam) Monogram of Rama V รัชกาลที่ ๕ (5th Reign)	โสลด (Solot) ๑๖ (16) อันเฟื้อง (parts fuang) ๑๒๓๖ (CS 1236)	1875
		At อัฐ	1/8 fueang, 1/64 baht	25 × 1	5.58	Copper	กรุงสยาม (Kingdom of Siam) Monogram of Rama V รัชกาลที่ ๕ (5th Reign)	อัฐ (At) ๘ (8) อันเฟื้อง (parts fuang) ๑๒๓๖ (CS 1236)	1875
		Siao เสี้ยว	1/4 fueang, 1/32 baht	30.5 × 2	11.14	Copper	กรุงสยาม (Kingdom of Siam) Monogram of Rama V รัชกาลที่ ๕ (5th Reign)	เสี้ยว (Siao) ๔ (4) อันเฟื้อง (parts fuang) ๑๒๓๖ (CS 1236)	1875
		Sik ซีก	1/2 fueang, 1/16 baht	38.5 × 2.5	22.57	Copper	กรุงสยาม (Kingdom of Siam) Monogram of Rama V รัชกาลที่ ๕ (5th Reign)	สิ้ก (Sik) ๒ (2) อันเฟื้อง (parts fuang) ๑๒๓๘ (CS 1238)	1875
		Fueang เฟื้อง	1 fueang, 1/8 baht	16 × 2.3	1.89 4~	Silver Gold	สมเด็จพระปรมินทรมหาจุฬาลงกรณ์ (His Majesty King Chulalongkorn) พระจุลจอมเกล้าเจ้าอยู่หัว (King Chulalongkorn)	กรุงสยาม (Siam) รัชกาลที่๕ (5th Reign) เฟื้องหนึ่ง (1 fueang)	1875
		Salueng สลึง	1/16 tamlueng, 1/4 baht	21 × 2.3	3.82	Silver	สมเด็จพระปรมินทรมหาจุฬาลงกรณ์ (His Majesty King Chulalongkorn) พระจุลจอมเกล้าเจ้าอยู่หัว (King Chulalongkorn)	กรุงสยาม (Siam) รัชกาลที่๕ (5th Reign) สลึงหนึ่ง (1 salueng)	1875
		Baht บาท	1/4 tamlueng, 1 baht	31 × 2.3	15.1	Silver	สมเด็จพระปรมินทรมหาจุฬาลงกรณ์ (His Majesty King Chulalongkorn) พระจุลจอมเกล้าเจ้าอยู่หัว (King Chulalongkorn)	กรุงสยาม (Siam) รัชกาลที่๕ (5th Reign) บาทหนึ่ง (1 baht)	1875

Issue 4 - 1888

This is a minor-issue where the lesser denominations' designs are updated, and incorporating the three-parted shield into the design.

Rama V, Issue 4
Image		Value		Dimensions (mm)	Weight (g)	Composition	Inscription, description		Date of issue
Obverse	Reverse	Name	Coinage value	Dimensions (mm)	Weight (g)	Composition	Obverse	Reverse	Date of issue
		Solot โสฬส	1/16 fueang, 1/128 baht	19 × 2	2.8	Copper	จุฬาลงกรณ์ ป.ร. (Chulalongkorn) พระจุลจอมเกล้าเจ้ากรุงสยาม (King of Siam)	หนึ่งโสฬศ (1 solot) ๑๑๘ (RS 118)	1888
		At อัฐ	1/8 fueang, 1/64 baht	24 × 2	5.8	Copper	จุฬาลงกรณ์ ป.ร. (Chulalongkorn) พระจุลจอมเกล้าเจ้ากรุงสยาม (King of Siam)	หนึ่งอัฐ (1 at) ๑๒๒ (RS 122)	1888
		Siao เสี้ยว	1/4 fueang, 1/32 baht	30 × 2	11.3	Copper	จุฬาลงกรณ์ ป.ร. (Chulalongkorn) พระจุลจอมเกล้าเจ้ากรุงสยาม (King of Siam)	หนึ่งเซียว (1 siao) ๑๒๒ (RS 122)	1888

Decimalization

The decimalization of the Thai baht came about at the end of the 19th century. The minister of treasury, Jayanta Mongkol, the Prince Mahisara Rajaharudaya, suggested to King Rama V, that decimalization would make counting easier and further modernize Siam. Initially, there would be one superunit, chang, and subunit, at. with the baht being in the middle. In summary, 64 at = 1 baht = 1/80 chang. In reality, this was just a simplification of the old system, which was scrapped.^[34] In which, during the period of 1902–1908, Siam went back to the old system.

Though, in comparison, in Laos, at is used as the subunit, compared to the satang in the Thai baht.

The second attempt came at the end of Rama V's reign, where it was more widely accepted and put into effective use.

Decimal coinage

In 1897, the first coins denominated in satang were introduced, cupronickel 2+1⁄2, 5, 10 and 20 satang. However, 1 solot, 1 and 2 at coins were struck until 1905 and 1 fuang coins were struck until 1910. In 1908, holed 1, 5 and 10 satang coins were introduced, with the 1 satang in bronze and the 5 and 10 satang in nickel. The 1 and 2 salung were replaced by 25 and 50 satang coins in 1915. In 1937, holed, bronze 1⁄2 satang were issued.

In 1941, a series of silver coins was introduced in denominations of 5, 10 and 20 satang, due to a shortage of nickel caused by World War II. The next year, tin coins were introduced for 1, 5 and 10 satang, followed by 20 satang in 1945 and 25 and 50 satang in 1946. In 1950, aluminium bronze 5, 10, 25 and 50 satang were introduced whilst, in 1957, bronze 5 and 10 satang were issued, along with 1-baht coins struck in an unusual alloy of copper, nickel, silver and zinc. Several Thai coins were issued for many years without changing the date. These include the tin 1942 1 satang and the 1950 5 and 10 satang, struck until 1973, the tin 1946 25 satang struck until 1964, the tin 50 satang struck until 1957, and the aluminium bronze 1957 5, 10, 25 and 50 satang struck until the 1970s. Cupronickel 1-baht coins were introduced in 1962 and struck without date change until 1982.

In 1972, cupronickel 5-baht coins were introduced, switching to cupronickel-clad copper in 1977. Between 1986 and 1988, a new coinage was introduced, consisting of aluminium 1, 5 and 10 satang, aluminium bronze 25 and 50 satang, cupronickel 1 baht, cupronickel-clad copper 5 baht and bimetallic 10 baht. Cupronickel-clad steel 2 baht were introduced in 2005.

Issue 5 - 1897 (transitional coinage)

Rama V, Issue 5
Image		Value		Dimensions (mm)	Weight (g)	Composition	Inscription, description		Date of issue
Obverse	Reverse	Name	Coinage value	Dimensions (mm)	Weight (g)	Composition	Obverse	Reverse	Date of issue
		2.5 satang	0.025 baht	19 × 1	1.8	Cupronickel	สยามอานาจักร (Kingdom of Siam) ศก๑๑๖ (RS 116)	สองสตางค์ครึ่ง (two and a half satang) ๒ (2) ๑/๒ (1/2)	1897
		5 satang	0.05 baht	19 × 1	2.9	Cupronickel	สยามอานาจักร (Kingdom of Siam) ศก๑๑๖ (RS 116)	ห้าสตางค์ (five satang) ๕ (5)	1897
		10 satang	0.10 baht	19 × 1	4~	Cupronickel	สยามอานาจักร (Kingdom of Siam) ศก๑๑๖ (RS 116)	สิบสตางค์ (ten satang) ๑๐ (10)	1897
		20 satang	0.20 baht	19 × 1.8	6.45	Cupronickel	สยามอานาจักร (Kingdom of Siam) ศก๑๑๖ (RS 116)	ยี่สิบสตางค์ (twenty satang) ๒๐ (20)	1897

Issue 6 - 1908, 1913, 1929, 1939

Rama V, VI, VII, VIII, Issue 6
Image		Value	Dimensions (mm)	Weight (g)	Composition	Inscription, description		Date of issue
Obverse	Reverse	Value	Dimensions (mm)	Weight (g)	Composition	Obverse	Reverse	Date of issue
		1 satang	22.5 × 1	5	Bronze-copper-zinc	Chakra	สยามรัฐ ๑ สตางค์ (Siamese State 1 satang)	1908
		1 satang	22.5 × 1	5	Bronze-copper-zinc	Chakra	รัฐบารไทย ๑ สตางค์ (Thai Government 1 satang)	1939
		5 satang	17.5 × 1	2	Nickel	Chakra	สยามรัฐ ๕ สตางค์ (Siamese State 5 satang)	1908
		10 satang	20 × 1	3.5	Nickel	Chakra	สยามรัฐ ๑๐ สตางค์ (Siamese State 10 satang)	1908
		1 baht	31 × 3	16	Silver	จุฬาลงกรณ์ สยามินทร์ (Chulalongkorn, Lord of Siam)	สยามรัฐ ร.ศ.๑๒๗ (Siamese State RS 127) หนึ่ง บาท (1 baht)	1908
		25 satang	20 × 1.3	3.75	Silver	วชิราวุธ สยามินทร์ (Vajiravudh, Lord of Siam)	สยามรัฐ ๒๔๖๘ (Siamese State BE 2468) หนึ่ง สลึง (1 salueng)	1913
		50 satang	25.3 × 1.3	7.5	Silver	วชิราวุธ สยามินทร์ (Vajiravudh, Lord of Siam)	สยามรัฐ ๒๔๕๘ (Siamese State BE 2458) สอง สลึง (2 salueng)	1913
		1 baht	30.5 × 1	15	Silver	วชิราวุธ สยามินทร์ (Vajiravudh, Lord of Siam)	สยามรัฐ ๒๔๖๐ (Siamese State BE 2460) หนึ่ง บาท (1 baht)	1913
		25 satang	20 × 1.3	3.75	Silver	ประชาธิปก สยามินทร์ (Prajadipok, Lord of Siam)	สยามรัฐ ๒๔๗๒ (Siamese State BE 2472) หนึ่ง สลึง (1 salueng)	1929
		50 satang	25.3 × 1.3	7.5	Silver	ประชาธิปก สยามินทร์ (Prajadipok, Lord of Siam)	สยามรัฐ ๒๔๗๒ (Siamese State BE 2472) สอง สลึง (2 salueng)	1929

Issue 7 - 1937, 1941, 1942, 1945

Rama VIII, Issue 7
Image		Value	Dimensions (mm)	Weight (g)	Composition	Inscription, description		Date of issue
Obverse	Reverse	Value	Dimensions (mm)	Weight (g)	Composition	Obverse	Reverse	Date of issue
		0.5 satang	19 × 1.3	1.8	Bronze	Chakra	สยามรัฐ ๑/๒ สตางค์ (Siamese State 1/2 satang)	1937
		1 satang	22.5 × 1.3	3.5	Bronze	Lotus พ.ศ.๒๔๘๔ (BE 2484)	๑ สต. (1 satang) รัฐบาลไทย (Thai Government)	1941
		1 satang	15 × 2	1.5	Tin	Lotus พ.ศ.๒๔๘๔ (BE 2484)	๑ สต. (1 satang) รัฐบาลไทย (Thai Government)	1942
		5 satang	16.6 × 1.3	1.5	Silver	Lotus พ.ศ.๒๔๘๔ (BE 2484)	๕ สต. (5 satang) รัฐบาลไทย (Thai Government)	1941
		5 satang	17.5 × 2	3	Tin	Lotus พ.ศ.๒๔๘๔ (BE 2484)	๕ สต. (5 satang) รัฐบาลไทย (Thai Government)	1942
		10 satang	19 × 1.3	2.5	Silver	Lotus พ.ศ.๒๔๘๔ (BE 2484)	๑๐ สต. (10 satang) รัฐบาลไทย (Thai Government)	1941
		10 satang	20 × 2	5	Tin	Lotus พ.ศ.๒๔๘๔ (BE 2484)	๑๐ สต. (10 satang) รัฐบาลไทย (Thai Government)	1942
		20 satang	22 × 1.3	3	Silver	Lotus พ.ศ.๒๔๘๕ (BE 2485)	๑๐ สต. (20 satang) รัฐบาลไทย (Thai Government)	1942
		20 satang	22 × 2	6	Tin	Lotus พ.ศ.๒๔๘๕ (BE 2485)	๑๐ สต. (20 satang) รัฐบาลไทย (Thai Government)	1945

Issue 8 - 1946

Rama VIII, Issue 8
Image		Value	Dimensions (mm)	Weight (g)	Composition	Inscription, description		Date of issue
Obverse	Reverse	Value	Dimensions (mm)	Weight (g)	Composition	Obverse	Reverse	Date of issue
		5 satang	15 × 1.3	1.3	Tin	อานันทมหิดล (Ananda Mahidol) รัชกาลที่ ๘ (8th Reign)	รัฐบาลไทย (Thai Government) ๕ สต. (5 satang) พ.ศ.๒๔๘๙ (BE 2489)	1946
		10 satang	17.7 × 1.3	1.8	Tin	อานันทมหิดล (Ananda Mahidol) รัชกาลที่ ๘ (8th Reign)	รัฐบาลไทย (Thai Government) ๑๐ สต. (10 satang) พ.ศ.๒๔๘๙ (BE 2489)	1946
		25 satang	21 × 1.5	2.8	Tin	อานันทมหิดล (Ananda Mahidol) รัชกาลที่ ๘ (8th Reign)	รัฐบาลไทย (Thai Government) ๒๕ สต. (25 satang) พ.ศ.๒๔๘๙ (BE 2489)	1946
		50 satang	25.5 × 1.5	5	Tin	อานันทมหิดล (Ananda Mahidol) รัชกาลที่ ๘ (8th Reign)	รัฐบาลไทย (Thai Government) ๕๐ สต. (50 satang) พ.ศ.๒๔๘๙ (BE 2489)	1946

Issue 9 - 1950

Rama IX, Issue 9
Image		Value	Dimensions (mm)	Weight (g)	Composition	Inscription, description		Date of issue
Obverse	Reverse	Value	Dimensions (mm)	Weight (g)	Composition	Obverse	Reverse	Date of issue
		5 satang	15 × 1	1.25	Aluminium bronze	ภูมิพลอดุลยเดช (Bhumibol Adulyadej) รัชกาลที่ ๙ (9th Reign)	รัฐบาลไทย (Thai Government) ๕ สต. (5 satang) พ.ศ.๒๕๐๐ (BE 2500)	1950
					Tin			1950
					Bronze			1957
		10 satang	17.5 × 1	1.75	Aluminium bronze	ภูมิพลอดุลยเดช (Bhumibol Adulyadej) รัชกาลที่ ๙ (9th Reign)	รัฐบาลไทย (Thai Government) ๑๐ สต. (10 satang) พ.ศ.๒๕๐๐ (BE 2500)	1950
					Tin			1950
					Bronze			1957
		25 satang	20 × 1	2.5	Aluminium bronze	ภูมิพลอดุลยเดช (Bhumibol Adulyadej) รัชกาลที่ ๙ (9th Reign)	รัฐบาลไทย (Thai Government) ๒๕ สต. (25 satang) พ.ศ.๒๕๐๐ (BE 2500)	1950
		50 satang	23 × 1.7	4.5	Aluminium bronze	ภูมิพลอดุลยเดช (Bhumibol Adulyadej) รัชกาลที่ ๙ (9th Reign)	รัฐบาลไทย (Thai Government) ๕๐ สต. (50 satang) พ.ศ.๒๕๐๐ (BE 2500)	1950
		1 baht	27 × 1.8	7.15	Silver-cupronickel	ภูมิพลอดุลยเดช (Bhumibol Adulyadej) รัชกาลที่ ๙ (9th Reign)	รัฐบาลไทย (Thai Government) หนึ่ง บาท (1 baht) พ.ศ.๒๕๐๕ (BE 2505)	1957
		1 baht	27 × 1.8	7.5	Cupronickel			1962

Issue 10 - 1972

Rama IX, Issue 10
Image		Value	Dimensions (mm)	Weight (g)	Composition	Inscription, description		Date of issue
Obverse	Reverse	Value	Dimensions (mm)	Weight (g)	Composition	Obverse	Reverse	Date of issue
		1 baht	25 × 1.8	7	Cupronickel	ภูมิพลอดุลยเดช (Bhumibol Adulyadej) รัชกาลที่ ๙ (9th Reign)	รัฐบาลไทย (Thai Government) ๑ บาท (1 baht) พ.ศ.๒๕๑๗ (BE 2517)	1972
		5 baht	28 × 2.0	9	Cupronickel	ภูมิพลอดุลยเดช (Bhumibol Adulyadej) รัชกาลที่ ๙ (9th Reign)	รัฐบาลไทย (Thai Government) ๕ บาท (5 baht) พ.ศ.๒๕๑๕ (BE 2515)	1972

Issue 11 - 1977

Rama IX, Issue 11
Image		Value	Dimensions (mm)	Weight (g)	Composition	Inscription, description		Date of issue
Obverse	Reverse	Value	Dimensions (mm)	Weight (g)	Composition	Obverse	Reverse	Date of issue
		25 satang	20.5 × 1.2	2.8	Aluminium bronze	ประเทศไทย (Thailand) รัชกาลที่ ๙ (9th Reign)	๒๕ สตางค์ (25 satang) พ.ศ.๒๕๒๑ (BE 2521)	1977
		50 satang	23 × 1.2	4.9	Aluminium bronze	ประเทศไทย (Thailand) รัชกาลที่ ๙ (9th Reign)	๕๐ สตางค์ (50 satang) พ.ศ.๒๕๒๓ (BE 2523)	1977
		1 baht	25 × 1.8	7	Cupronickel	ประเทศไทย (Thailand) รัชกาลที่ ๙ (9th Reign)	๑ บาท (1 baht) พ.ศ.๒๕๒๐ (BE 2520)	1977
		5 baht	30 × 2.3	12	Cupronickel-clad copper	ประเทศไทย (Thailand) รัชกาลที่ ๙ (9th Reign)	๕ บาท (5 baht) พ.ศ.๒๕๒๒ (BE 2522)	1977

Issue 12 - 1982

Rama IX, Issue 12
Image		Value	Dimensions (mm)	Weight (g)	Composition	Inscription, description		Date of issue
Obverse	Reverse	Value	Dimensions (mm)	Weight (g)	Composition	Obverse	Reverse	Date of issue
		1 baht	25 × 1.8	7	Cupronickel	ภูมิพลอดุลยเดช (Bhumibol Adulyadej) รัชกาลที่ ๙ (9th Reign)	ประเทศไทย (Thailand) ๑ บาท (1 baht) พ.ศ.๒๕๒๕ (BE 2525)	1982
		5 baht	30 × 2.3	12	Cupronickel-clad copper	ภูมิพลอดุลยเดช (Bhumibol Adulyadej) รัชกาลที่ ๙ (9th Reign)	ประเทศไทย (Thailand) ๕ บาท (5 baht) พ.ศ.๒๕๒๕ (BE 2525)	1982

Issue 13 - 1987, 2008, 2009

Rama IX, Issue 13
Image		Value	Dimensions (mm)	Weight (g)	Composition	Inscription, description		Date of issue
Obverse	Reverse	Value	Dimensions (mm)	Weight (g)	Composition	Obverse	Reverse	Date of issue
		25 satang	16 × 1.35	1.9	Aluminium bronze	ภูมิพลอดุลยเดช (Bhumibol Adulyadej) รัชกาลที่ ๙ (9th Reign)	ประเทศไทย (Thailand) ๒๕ สตางค์ 25 (25 satang) พ.ศ.๒๕๔๗ (BE 2547)	1987
		25 satang	16 × 1.35	1.9	Copperplated steel			2008
		50 satang	18 × 1.35	2.4	Aluminium bronze	ภูมิพลอดุลยเดช (Bhumibol Adulyadej) รัชกาลที่ ๙ (9th Reign)	ประเทศไทย (Thailand) ๕๐ สตางค์ 50 (50 satang) พ.ศ.๒๕๓๘ (BE 2538)	1987
		50 satang	18 × 1.35	2.4	Copperplated steel			2008
		1 baht	20 × 1.5	3.4	Cupronickel	ภูมิพลอดุลยเดช (Bhumibol Adulyadej) รัชกาลที่ ๙ (9th Reign)	ประเทศไทย (Thailand) ๑ บาท (1 baht) พ.ศ.๒๕๔๒ (BE 2542)	1987
		1 baht	20 × 1.5	3	Nickelplated steel			2009
		2 baht	21.75 × 1.8	4.4	Nickelplated steel	ภูมิพลอดุลยเดช (Bhumibol Adulyadej) รัชกาลที่ ๙ (9th Reign)	ประเทศไทย (Thailand) ๒ บาท 2 (2 baht) พ.ศ.๒๕๔๙ (BE 2549)	2005
		2 baht	21.75 × 1.5	4	Aluminium bronze		ประเทศไทย (Thailand) ๒ บาท 2 (2 baht) พ.ศ.๒๕๕๖ (BE 2556)	2008
		5 baht	24 × 2.2	7.5	Cupronickel-clad copper	ภูมิพลอดุลยเดช (Bhumibol Adulyadej) รัชกาลที่ ๙ (9th Reign)	ประเทศไทย (Thailand) ๕ บาท (5 baht) พ.ศ.๒๕๓๐ (BE 2530)	1987
			24 × 2.2	7.5			ประเทศไทย(Thailand) ๕ บาท (5 baht) พ.ศ.๒๕๓๓ (BE 2533)	1988
			24 × 1.75	6			ประเทศไทย(Thailand) ๕ บาท (5 baht) พ.ศ.๒๕๓๓ (BE 2533)	2008
		10 baht	26 × 2.15	8.5	Aluminium bronze (center) Cupronickel (ring)	ภูมิพลอดุลยเดช (Bhumibol Adulyadej) รัชกาลที่ ๙ (9th Reign)	ประเทศไทย(Thailand) ๑๐ บาท 10 (10 baht) พ.ศ.๒๕๔๕ (BE 2545)	1988
		10 baht	26 × 2.15	8.5	Aluminium bronze (center) Cupronickel (ring)			2008

Current coinage

The current coin series is the 14th issue.

In 2008, in the 13th issue, the Ministry of Finance and the Royal Thai Mint announced the 2009 coin series, which included changes in materials to reduce production costs as well as an update of the image on the obverse to a more recent portrait of the king. The two-baht coin, confusingly similar in color and size to the one-baht coin, was changed from nickel-clad low-carbon steel to aluminium bronze. New two-baht coin was the first of the new series released on February 3, 2009, followed by the satang coins in April, a five-baht coin in May, a ten-baht coin in June, and a one-baht coin in July 2009.

In 2018, the Royal Thai Mint and the Ministry of Finance issued a new series of general circulation coins, featuring the same standard specifications, but feature a portrait of its current king, Maha Vajiralongkorn.

Coins of the Thai baht (Rama IX) [2] [3] (in Thai)
Value	Technical parameters			Description		Date of first minting
Value	Diameter	Mass	Composition	Obverse	Reverse	Date of first minting
1 satang¹	15 mm	0.5 g	97.5% Al, 2.5% Mg	King Bhumibol Adulyadej	Wat Phra That Hariphunchai, Lamphun	1987
1 satang¹	15 mm	0.5 g	99% Aluminium		Wat Phra That Hariphunchai, Lamphun	2008
5 satang¹	16 mm	0.6 g	97.5% Al, 2.5% Mg		Wat Phra Pathom Chedi, Nakhon Pathom	1987
5 satang¹	16.5 mm	0.6 g	99% Aluminium		Wat Phra Pathom Chedi, Nakhon Pathom	2008
10 satang¹	17.5 mm	0.8 g	97.5% Al, 2.5% Mg		Wat Phra That Choeng Chum, Sakon Nakhon	1987
10 satang¹	17.5 mm	0.8 g	99% Aluminium		Wat Phra That Choeng Chum, Sakon Nakhon	2008
25 satang	16 mm	1.9 g	Aluminium bronze	King Bhumibol Adulyadej	Wat Phra Mahathat, Nakhon Si Thammarat	1987
25 satang	16 mm	1.9 g	Copperplated steel	King Bhumibol Adulyadej	Wat Phra Mahathat, Nakhon Si Thammarat	2008
50 satang	18 mm	2.4 g	Aluminium bronze	King Bhumibol Adulyadej	Wat Phra That Doi Suthep, Chiang Mai	1987
50 satang	18 mm	2.4 g	Copperplated steel	King Bhumibol Adulyadej	Wat Phra That Doi Suthep, Chiang Mai	2008
1 baht	20 mm	3.4 g	Cupronickel (1986–2008)	King Bhumibol Adulyadej	Wat Phra Kaew, Bangkok	1986
1 baht	20 mm	3 g	Nickelplated steel (2008–present)	King Bhumibol Adulyadej	Wat Phra Kaew, Bangkok	2008
2 baht	21.75 mm	4.4 g	Nickelplated low-carbon steel	King Bhumibol Adulyadej	Wat Saket, Bangkok	2005
2 baht	21.75 mm	4 g	Aluminium bronze	King Bhumibol Adulyadej	Wat Saket, Bangkok	2008
5 baht	24 mm	7.5 g	Cupronickel-clad copper	King Bhumibol Adulyadej	Wat Benchamabophit, Bangkok	1988
5 baht	24 mm	6 g	Cupronickel-clad copper	King Bhumibol Adulyadej	Wat Benchamabophit, Bangkok	2008
10 baht	26 mm	8.5 g	Center plug: Aluminium bronze Outer ring: Cupronickel	King Bhumibol Adulyadej	Wat Arun, Bangkok	1988
10 baht	26 mm	8.5 g		King Bhumibol Adulyadej	Wat Arun, Bangkok	2008

Coins of the Thai baht (Rama X)
Image		Value	Composition	Description		Date of first minting
Obverse	Reverse	Value	Composition	Obverse	Reverse	Date of first minting
		1 satang	Aluminum	King Vajiralongkorn	Monogram of Vajiralongkorn	2018
		5 satang	Aluminum	King Vajiralongkorn	Monogram of Vajiralongkorn	2018
		10 satang	Aluminum	King Vajiralongkorn	Monogram of Vajiralongkorn	2018
		25 satang	Copperplated steel	King Vajiralongkorn	Monogram of Vajiralongkorn	2018
		50 satang	Copperplated steel	King Vajiralongkorn	Monogram of Vajiralongkorn	2018
		1 baht	Nickelplated steel	King Vajiralongkorn	Monogram of Vajiralongkorn	2018
		2 baht	Aluminum bronze	King Vajiralongkorn	Monogram of Vajiralongkorn	2018
		5 baht	Cupronickel-clad copper	King Vajiralongkorn	Monogram of Vajiralongkorn	2018
		10 baht	Center plug: Aluminium bronze Outer ring: Cupronickel	King Vajiralongkorn	Monogram of Vajiralongkorn	2018

Remarks

The 1, 5 and 10 satang are used only internally between banks and are not in circulation.^[35]
Older coins, some of which are still in circulation, had only Thai numerals, but newer designs also have Arabic numerals.
The standard-issue 10-baht coin has, at the 12 o'clock position on the reverse, raised dots corresponding to Braille cell dot 1 and dots 2-4-5, which correspond to the number 10.
10-baht coins are very similar to 2-euro coins in size, shape and weight, and are likewise bi-metallic, although they are worth only 25 eurocents. Vending machines not equipped with up-to-date coin detectors might therefore accept them as €2 coins or old Italian 500 lira coins as well.^[36]
Many commemorative 1-, 2-, 5- and 10-baht coins have been made for special events. There also are 20-, 50-, 100-baht base metal commemorative coins and higher-denomination precious metal coins as well.^[which?]

In February 2010 the Treasury Department of Thailand stated that it has been planning a new circulation 20-baht coin.^[37]

Monarch's profile

Rama X
Rama IX
Rama VII
Rama VII
Rama VI
Rama V

Banknotes

In 1851, the government issued notes for 1⁄8, 1⁄4, 3⁄8, 1⁄2 and 1 tical, followed by 3, 4, 6 and 10 tamlueng in 1853. After 1857, notes for 20 and 40 ticals were issued, also bearing their values in Straits dollars and Indian rupees. Undated notes were also issued before 1868 for 5, 7, 8, 12 and 15 tamlueng, and 1 chang. One at notes were issued in 1874.

In 1892, the treasury issued notes for 1, 5, 10, 40, 80, 100, 400 and 800 ticals, called "baht" in the Thai text.

On September 19, 1902, the government introduced notes which were printed by Thomas De La Rue & Company Limited, England, during the reigns of kings Rama V and Rama VI, denominated 5, 10, 20, 100 and 1000 ticals, still called baht in the Thai text — each denomination having many types,^[38] with 1 and 50 tical notes following in 1918. In 1925, notes were issued in denominations of 1, 5, 10, 20, 100 and 1,000 baht with the denomination in both Arabic and Thai numerals without English text;^[39] English speakers continued to refer to these as "ticals".^[40]

On 27 July 2010, the Bank of Thailand announced that the 16th-series banknotes would enter circulation in December 2010.^[41]^[42] On 9 August 2012, the Bank of Thailand issued a new denomination banknote, 80 baht, to commemorate queen Sirikit's 80th birthday.^[43] It was the first Thai banknote that featured Crane's MOTION security thread.

In 2017, the Bank of Thailand announced a new family of banknotes in remembrance of its late king Bhumibol Adulyadej (Rama IX). The notes are the same size and dimensions as the "Series 16" banknotes, with the front designs as before, but the back designs featuring images of the king's life in infancy, adolescence and maturity. The new family of banknotes were issued on September 20.^[44]

In 2018, the Bank of Thailand announced a new family of banknotes featuring a portrait of its current king, Maha Vajiralongkorn. The main colors and dimensions of the notes are the same as before, with the back designs featuring images of the Kings of Thailand from past to present. The 20, 50 and 100 baht banknotes were issued on Chakri Memorial Day, April 6, 2018. The final two denominations, 500 and 1,000 baht were issued on the anniversary of the birth of King Maha Vajiralongkorn, July 28, 2018.^[45]

Timeline

2003-present (Series 14 to Series 17) Later Rama 9 and Rama 10 Era

Images of banknotes have been removed lest they infringe copyright,^[46] but may be viewed at the Thai-language article linked in the margin.

Series 14

The 14th series aims to focus on the activities and contributions of the Chakri Kings. There were officially 3 notes issued, but the 50 baht notes were also produced along side. Though this polymer 50 baht is considered to be a part of series 15 even though the production date began in 1994.^[47]^[48]

14th series banknotes^[49]
Value	Dimensions	Main colour	Description		Date of issue
Value	Dimensions	Main colour	Obverse	Reverse	Date of issue
50 baht (polymer)	144 × 72 mm	Blue	King Bhumibol Adulyadej in the uniform of the supreme commander of the armed forces	King Mongkut (Rama IV)	1994-2004
100 baht	150 × 72 mm	Red		King Chulalongkorn (Rama V) and King Mongkut (Rama IV)	1994-2003
500 baht	156 × 72 mm	Purple		Kings Phra Buddha Yodfa Chulaloke (Rama I) and Phra Buddha Loetla Nabhalai (Rama II)	1996-2001
1,000 baht	166 × 80 mm	Silver		Kings Bhumibol Adulyadej (Rama IX) and Queen Sirikit	1992-2005

Series 15

The series 15 aims to update and expand the previous series 14's design. The 1000 baht was resized down. There are two variants of this series, with the second and later variant having updated securities features.^[50]

15th series banknotes^[49]
Value	Dimensions	Main colour	Description		Date of issue
Value	Dimensions	Main colour	Obverse	Reverse	Date of issue
20 baht	138 × 72 mm	Green	King Bhumibol Adulyadej in the uniform of the supreme commander of the armed forces	King Ananda Mahidol (Rama VIII)	3 March 2003
50 baht	144 × 72 mm	Blue		King Mongkut (Rama IV)	19 March 2004
100 baht	150 × 72 mm	Red		King Chulalongkorn (Rama V) and King Vajiravudh (Rama VI)	21 October 2005
500 baht	156 × 72 mm	Purple		King Nangklao (Rama III)	1 August 2001
1,000 baht	162 × 72 mm	Brown		King Bhumibol Adulyadej; Pa Sak Jolasid Dam	25 November 2005

Series 16

Similar to the series 15, the series 16 banknotes updated the design to include a more later portrait of King Rama 9. There are two variants of this series, the later one being a circulated commemorative series cirrculating for a year after King Rama 9's passing. The Series 16-2 depicts on the reverse, the life and achievements of King Rama 9.

16th series banknotes**^[49]
Value	Dimensions	Main colour	Description		Date of issue
Value	Dimensions	Main colour	Obverse	Reverse	Date of issue
20 baht^[51]	138 × 72 mm	Green	King Bhumibol Adulyadej in the Royal House of Chakri gown	King Ram Khamhaeng the Great on the Manangkhasila Asana Throne monument; invention of the Thai script; Ramkhamhaeng stele	1 April 2013^[52]
50 baht^[53]	144 × 72 mm	Blue		King Naresuan the Great pouring water for declaration of independence monument; Statue of king Naresuan the Great on war elephant; Phra Chedi Chai Mongkol temple	18 January 2012^[54]
100 baht^[55]	150 × 72 mm	Red		King Taksin the Great monument in Wongwian Yai circle; Phra Ratchawang Doem (King Taksin's palace); Wichai Prasit Fortress Thonburi	26 February 2015^[56]
500 baht^[57]	156 × 72 mm	Violet		King Buddha Yodfa Chulalok the Great (King Rama I) monument; Wat Phra Chetuphon Vimolmangklararm Rajwaramahaviharn (Wat Pho); Phra Sumen Fort (Bangkok city wall)	12 May 2014^[58]
1,000 baht^[59]	162 × 72 mm	Brown		King Chunla Chom Klao the Great (King Rama V) monument; Ananta Samakhom throne hall, Dusit palace ground king's monument, end of slavery in Siam	21 August 2015^[60]

Series 17

17th series banknotes^[61]
Value	Dimensions	Main colour	Description		Date of issue
Value	Dimensions	Main colour	Obverse	Reverse	Date of issue
20 baht	138 × 72 mm	Green	King Maha Vajiralongkorn in the uniform of the commander of the Royal Thai Air Force and wearing Order of the Nine Gems	Kings Phra Buddha Yodfa Chulaloke (Rama I) and Phra Buddha Loetla Nabhalai (Rama II)	6 April 2018
50 baht	144 × 72 mm	Blue		Kings Nangklao (Rama III) and Mongkut (Rama IV)	6 April 2018
100 baht	150 × 72 mm	Red		Kings Chulalongkorn (Rama V) and Vajiravudh (Rama VI)	6 April 2018
500 baht	156 × 72 mm	Purple		Kings Prajadhipok (Rama VII) and Ananda Mahidol (Rama VIII)	28 July 2018
1,000 baht	162 × 72 mm	Brown		Kings Bhumibol Adulyadej (Rama IX) and Maha Vajiralongkorn (Rama X)	28 July 2018

1948-2003 (Series 9 to Series 13) Early Rama 9 Era

These banknotes series are not demonitized, hence would be legal tender. Though, they are never seen in circulation anymore.

Series 9, Second Portrait
Series 10
Series 11

These banknotes images are allowed under a strict copyright infringement exemption under the Chapter 1: Copyright, Part 6: Exceptions to Infringement of Copyright, Clause 7 of Copyright Act B.E. 2537 (1994) Amended by Copyright Act (NO. 2) B.E. 2558 (2015), and Copyright Act (NO.3) B.E. 2558 (2015) and Copyright Act (NO.4) B.E. 2561 (2018): reproduction, adaptation in part of a work or abridgement or making a summary by a teacher or an educational institution so as to distribute or sell to students in a class or in an educational institution, provided that the act is not for profit;[4]

So as to serve as an educational material, only one side is shown, and any series beyond series 13 is omitted.

Series 9

Series 9 Banknote Portrait Difference, young portrait (left), new portrait (right)

Series 9 banknotes are produced by Thomas De La Rue & Company Limited. There are two variations within this series, the young, and new portrait. According to the Bank of Thailand, the color schemes of this series established the denominations' colors for all of the following series due to the series circulating for 20 years.^[62]

9th series banknotes (First Portrait; Second Portrait)
Value	Dimensions	Main colour	Description		Date of issue
Value	Dimensions	Main colour	Obverse	Reverse	Date of issue
50 satang	115 × 63 mm	Green	The Constitution of Siam	Phra Samut Chedi	1948-1969
1 baht	126 × 66 mm	Green	King Bhumibol Adulyadej in the uniform of the supreme commander of the armed forces, and Wat Pho	Anandasamakom Throne Hall	1948-1955; 1955-1969
5 baht	136 × 77 mm	Green and Grey	King Bhumibol Adulyadej in the uniform of the supreme commander of the armed forces, and Phra Pathomma Chedi	Anandasamakom Throne Hall	1948-1955; 1955-1969
10 baht	146 × 86 mm	Brown	King Bhumibol Adulyadej in the uniform of the supreme commander of the armed forces, and Pharakarn Fortress	Anandasamakom Throne Hall	1948-1953; 1953-1969
20 baht	146 × 86 mm	Green	King Bhumibol Adulyadej in the uniform of the supreme commander of the armed forces, and Grand Palace	Anandasamakom Throne Hall	1948-1955; 1955-1971
100 baht	145 × 86 mm	Red	King Bhumibol Adulyadej in the uniform of the supreme commander of the armed forces, and Wat Arun	Anandasamakom Throne Hall	1948-1955; 1955-1968

Series 10

Series 10 banknotes are produced by Thomas De La Rue & Company Limited, due to heavy counterfeiting, series 10 was issued in series 9's stead.^[63] The 100 baht is the only denomination issued in this series.

10th series banknotes
Value	Dimensions	Main colour	Description		Date of issue
Value	Dimensions	Main colour	Obverse	Reverse	Date of issue
100 baht	145 × 86 mm	Red	King Bhumibol Adulyadej in uniform	Royal barge "Suphannahong"	1968-1969

Series 11

In this series, the 500 baht note was introduced for the first time ever, this coincides with the Bank of Thailand fully converting to an in-house production.^[64] As a consequence, the 1 baht note's production was cancelled.

11th series banknotes
Value	Dimensions	Main colour	Description		Date of issue
Value	Dimensions	Main colour	Obverse	Reverse	Date of issue
5 baht	130 × 67.5 mm	Violet	King Bhumibol Adulyadej in full regalia	The Arphonphimoke Prasat Pavilion	1969-1978
10 baht	135 × 70 mm	Brown	King Bhumibol Adulyadej in full regalia	Wat Benchamabophit	1969-1978
20 baht	140 × 72 mm	Green	King Bhumibol Adulyadej in full regalia	Royal barge "Anantanakkharat"	1971-1978
100 baht	150 × 77 mm	Red	King Bhumibol Adulyadej in full regalia	Wat Phra Si Rattana Satsadaram	1969-1978
500 baht	160 × 80 mm	Purple	King Bhumibol Adulyadej in full regalia	Phra Prang Sam Yod	1975-1988

Series 12 & 13

Series 12 and 13 aims to glorify past thai monarchs, the Bank of Thailand dubbed this as "The Great Series". The 5 baht note's production was cancelled. The note 50 baht and 500 baht are a part of series 13, and was issued to commemorate the bicentennial celebration of Bangkok in 1982, though the production had to be delayed for the new printing press to be installed.^[65]

12th series banknotes and 13th series banknotes
Value	Dimensions	Main colour	Description		Date of issue
Value	Dimensions	Main colour	Obverse	Reverse	Date of issue
10 baht	132 × 69 mm	Brown	King Bhumibol Adulyadej in uniform	Equestrian statue of King Chulalongkorn	1978-2003
20 baht	139 × 72 mm	Green	King Bhumibol Adulyadej in uniform	King Taksin's Statue at Chantaburi	1978-2003
50 baht	144 × 72 mm	Blue	King Bhumibol Adulyadej in full regalia	Anandasamakom Throne Hall, the Coronation of King Rama VII Prajadhipok	1985-1996
50 baht (polymer)	144 × 72 mm	Blue and Yellow	King Bhumibol Adulyadej in full regalia	Anandasamakom Throne Hall, the Coronation of King Rama VII Prajadhipok	1996-1997
100 baht	154 × 80 mm	Red	King Bhumibol Adulyadej in uniform	King Naresuan the Great atop War Elephant	1978-1994
500 baht	160 × 80 mm	Purple	King Bhumibol Adulyadej in the uniform of the supreme commander of the armed forces	The Monument of King Rama I	1988-1996

1935-1948 (Series 3 Type II to Series 8) Rama 8 Era

Series 3 Type 2
Series 4 Type 1
Series 4 Type 2
Series 5
Series 6
Series 7
Series 8

Series 3 Type II

Series 3 type ii banknotes are produced by Thomas De La Rue & Company Limited. It is the first series to hold Rama 8's portrait, which replaced Rama 7's portrait in the Type I.

type II 3th series banknotes
Value	Dimensions	Main colour	Description		Date of issue
Value	Dimensions	Main colour	Obverse	Reverse	Date of issue
1 baht	135 × 75 mm	Green	Young King Ananda and Suphannahongse Royal Barge	Phra Samut Chedi Temple	1935-1937
5 baht	155 × 85 mm	Green and Grey	Young King Ananda and Temple of the Emerald Buddha	Phra Samut Chedi Temple	1935-1937
10 baht	175 × 95 mm	Brown	Young King Ananda and a Scene of the Mae Ping River	Phra Samut Chedi Temple	1935-1937
20 baht	175 × 95 mm	Green	Young King Ananda and a Scene of a Riverside Community	Phra Samut Chedi Temple	1935-1937

Series 4 Type I

Series 4 type i banknotes are produced by Thomas De La Rue & Company Limited.

type I 4th series banknotes
Value	Dimensions	Main colour	Description		Date of issue
Value	Dimensions	Main colour	Obverse	Reverse	Date of issue
1 baht	125 × 65 mm	Green	Young King Ananda and Phra Samut Chedi	Anandasamakom Throne Hall	1937-1942
5 baht	135 × 76 mm	Green and Grey	Young King Ananda and Phra Pathom Chedi	Anandasamakom Throne Hall	1937-1942
10 baht	145 × 87 mm	Brown	Young King Ananda and Mahakarn Fortress	Anandasamakom Throne Hall	1937-1942
20 baht	145 × 87 mm	Green	Young King Ananda and Golden Mountain Stupa	Anandasamakom Throne Hall	1937-1942
1000 baht	195 × 100 mm	Red	Young King Ananda and a Dusidabhirom Pavilion	Anandasamakom Throne Hall	1937-1942

Series 4 Type II

Series 4 type ii banknotes are produced by Royal Thai Survey Department and the Naval Hydrographic Department. During world war 2, Thailand allied with the Empire of Japan. This meant that the government of Thailand could not order banknotes from Thomas De La Rue & Company Limited.

type I 4th series banknotes
Value	Dimensions	Main colour	Description		Date of issue
Value	Dimensions	Main colour	Obverse	Reverse	Date of issue
1 baht	125 × 65 mm	Green	Young King Ananda and Phra Samut Chedi	Anandasamakom Throne Hall	1942
10 baht	146 × 86 mm	Brown	Young King Ananda and Mahakarn Fortress	Anandasamakom Throne Hall	1942
20 baht	146 × 86 mm	Green	Young King Ananda and Grand Palace	Anandasamakom Throne Hall	1942
100 baht	125 × 65 mm	Cyan	Young King Ananda and a Wat Arun	Anandasamakom Throne Hall	1942

Series 5

Series 5 banknotes are produced by Notes Printing Works of Japan.

5th series banknotes
Value	Dimensions	Main colour	Description		Date of issue
Value	Dimensions	Main colour	Obverse	Reverse	Date of issue
50 satang	117 × 63 mm	Green	Young King Ananda	Grand Palace	1942-1945
1 baht	125 × 65 mm	Grey	Young King Ananda and Pumin Temple	Grand Palace	1942-1945
5 baht	135 × 75 mm	Green	Young King Ananda and Wat Benchamabophit Dusitwanaram	Grand Palace	1942-1945
10 baht	145 × 85 mm	Green	Young King Ananda and Wat Pho	Grand Palace	1942-1945
20 baht	155 × 90 mm	Green	Young King Ananda and Aisawan Tipaya-ast Pavilion	Grand Palace	1942-1945
100 baht	175 × 100 mm	Red	Young King Ananda and Wat Arun	Grand Palace	1942-1945
1000 baht	175 × 100 mm	Green	Young King Ananda and Grand Palace	Grand Palace	1942-1945

Series 6

Series 6 banknotes are produced by Royal Thai Survey Department.

6th series banknotes
Value	Dimensions	Main colour	Description		Date of issue
Value	Dimensions	Main colour	Obverse	Reverse	Date of issue
20 baht	147 × 87 mm	Green	Young King Ananda and Dusidapirom Pavilion	Anandasamakom Throne Hall	1945
100 baht	147 × 87 mm	Green	Young King Ananda and Wat Arun	Anandasamakom Throne Hall	1945

Series 7

Series 7 banknotes relied on private printing under the supervision of the Bank of Thailand. According to the Bank of Thailand, the quality of this series was barely satisfactory.

7th series banknotes
Value	Dimensions	Main colour	Description		Date of issue
Value	Dimensions	Main colour	Obverse	Reverse	Date of issue
1 baht	104 × 54 mm	Cyan	King Ananda and Phra Samut Chedi	Anandasamakom Throne Hall	1945
5 baht	135 × 76 mm	Purple	King Ananda and Phra Patom Chedi	Anandasamakom Throne Hall	1945
10 baht	135 × 76 mm	Green	King Ananda and Mahakarn Fortress	Anandasamakom Throne Hall	1945
50 baht	104 × 54 mm	Red	King Ananda and Wat Benchamabophit Dusitwanaram	Anandasamakom Throne Hall	1945

Special Series Banknote

The special series are banknotes which were issued during world war 2, each at different times.

special series banknotes
Value	Dimensions	Main colour	Description		Date of issue
Value	Dimensions	Main colour	Obverse	Reverse	Date of issue
50 satang (overprint)	145 × 85 mm	Grey	Young King Ananda and Wat Pho	Grand Palace	1946
50 satang (Kong Tek Note)	125 × 65 mm	Grey and Yellow	none	Anandasamakom Throne Hall	1946
1 baht (Kong Tek Note)	117 × 63 mm	Grey and Red	King Ananda and a 16 pointed Star symbol	Anandasamakom Throne Hall	1942
1 baht (Invasion Note)	114 × 73 mm	Grey	none	none	1946
1000 baht	104 × 54 mm	Red	King Ananda and Phra Prang Sam Yod	Anandasamakom Throne Hall	1943

Series 8

At the end of world war 2, Thomas De La Rue & Company Limited's printing house suffered damage from German bombing, thus the Royal Thai Government turned to the United States government to produce the series 8. The Tudor Press company produced this series.

8th series banknotes
Value	Dimensions	Main colour	Description		Date of issue
Value	Dimensions	Main colour	Obverse	Reverse	Date of issue
1 baht	110 × 66 mm	Green	King Ananda and Phra Patom Chedi	The Constitution of Siam	1945-1948
5 baht	110 × 66 mm	Blue	King Ananda and Phra Patom Chedi	The Constitution of Siam	1945-1948
10 baht	110 × 66 mm	Brown	King Ananda and Phra Patom Chedi	The Constitution of Siam	1945-1948
20 baht	156 × 90 mm	Violet	King Ananda and Phra Patom Chedi	The Constitution of Siam	1945-1948
100 baht	156 × 90 mm	Brown and Cyan	King Ananda and Phra Patom Chedi	The Constitution of Siam	1945-1948

1925-1935 (Series 2 to Series 3 Type I) Rama 7 Era

Series 3 Type 1
Series 2

Series 2

Series 2 banknotes are produced by Thomas De La Rue & Company Limited.

2th series banknotes
Value	Dimensions	Main colour	Description		Date of issue
Value	Dimensions	Main colour	Obverse	Reverse	Date of issue
1 baht	135 × 75 mm	Blue and Yellow	none	Royal Ploughing Ceremony	1925-1934
5 baht	155 × 85 mm	Green and Grey	none	Royal Ploughing Ceremony	1925-1934
10 baht	175 × 95 mm	Red	none	Royal Ploughing Ceremony	1925-1934
20 baht	175 × 95 mm	Green	none	Royal Ploughing Ceremony	1925-1934
100 baht	175 × 95 mm	Blue and Green	none	Royal Ploughing Ceremony	1928-1934
1000 baht	195 × 105 mm	Red	none	Royal Ploughing Ceremony	1928-1934

Series 3 Type I

Series 3 type i banknotes are produced by Thomas De La Rue & Company Limited. This series was actually delayed due to the Siamese Revolution to abolish the absolute monarch and transform the institution into a constitutional monarchy. The issuance was supposed to happen in the early 1930s.

type I 3th series banknotes
Value	Dimensions	Main colour	Description		Date of issue
Value	Dimensions	Main colour	Obverse	Reverse	Date of issue
1 baht	135 × 75 mm	Green	King Prajadipok and Suphannahongse Royal Barge	Phra Samut Chedi Temple	1934-1935
5 baht	155 × 85 mm	Green and Grey	King Prajadipok and Temple of the Emerald Buddha	Phra Samut Chedi Temple	1934-1935
10 baht	175 × 95 mm	Brown	King Prajadipok and a Scene of the Mae Ping River	Phra Samut Chedi Temple	1934-1935
20 baht	175 × 95 mm	Green	King Prajadipok and a Scene of a Riverside Community	Phra Samut Chedi Temple	1934-1935

1902-1925 (Series 1) Rama 5 and Rama 6 Era

Series 1

Series 1 was chosen due to the series which precedes this were non-decimal. Series 1 banknotes is the first series to be produced by Thomas De La Rue & Company Limited. In 1900, Charles James Rivett Carnac, a Royal Treasury Ministry advisor proposed that the Siamese Baht followed the issuances of banknotes followed the British standard. The banknote department was established quickly thereafter. The main characteristic of this series was that the notes are onesided and multilingual, containing Chinese, Malay (in Jawi script), and Latin script.^[66] It was also the last series to use the term "tical" to refer to the Thai Baht, and the largest in term of size of circulated notes.

1th series banknotes
Value	Dimensions	Main colour	Description		Date of issue
Value	Dimensions	Main colour	Obverse	Reverse	Date of issue
1 tical	165 × 105 mm	Cyan	none	blank	1918-1925
5 ticals	165 × 105 mm	Grey	none	blank	1902-1925
10 ticals	205 × 126 mm	Brown	none	blank	1902-1925
20 ticals	205 × 126 mm	Green	none	blank	1902-1925
50 ticals	165 × 105 mm	Grey	none	blank	1918-1925
100 ticals	205 × 126 mm	Grey	none	blank	1903-1928
1000 ticals	205 × 126 mm	Red	none	blank	1902-1928

Before 1902 Pre Decimalization Era

The characteristic of the banknotes of this era is that there were no series issued at the same time, rather they are issued sporadically and have multiple banks producing their own banknotes.

1851-1868 Rama 4 Era Banknotes


Value	Written Text	Value equivalent in baht	Issuing Body	Date of Issue
1 fuang	เฟื้องหนึ่ง 方壹 Octava Pars Ticalis One eights of tical	1/8	Royal Printing Works, Royal Palace of Siam	1853
1 salueng	สลึงหนึ่ง 銭壹 Quartia pars ticalis One quarter of tical	1/4	Royal Printing Works, Royal Palace of Siam	1853
1 salueng 1 fueang	สลึงเฟื้อง 方銭壹 Tres octava partes ticalis Three eights of tical	3/8	Royal Printing Works, Royal Palace of Siam	1853
2 salueng	สองสลึง 銭貳 Media pars ticalis One half of tical	1/2	Royal Printing Works, Royal Palace of Siam	1853
2 salueng 1 fueang	สองสลึงเฟื้อง 方銭貳 Quinque octava partes ticalis Five eights of tical	5/8	Royal Printing Works, Royal Palace of Siam	1853
3 salueng	สามสลึง 銭參 Tres partes ticalis Three quarter of tical	3/4	Royal Printing Works, Royal Palace of Siam	1853
3 salueng 1 fueang	สามสลึงเฟื้อง 方銭參 Septem octava Pars Ticalis Seven eights of tical	7/8	Royal Printing Works, Royal Palace of Siam	1853
1 baht	บาทหนึ่ง 圓壹 Unus tcalis One tical	1	Royal Printing Works, Royal Palace of Siam	1853
2 tamlueng	พระราชทานเงินตรา สองตำงลึง	8	Royal Printing Works, Royal Palace of Siam	1856
3 tamlueng	พระราชทานเงินตรา สามตำงลึง	12	Royal Printing Works, Royal Palace of Siam	1853; 1856
4 tamlueng	พระราชทานเงินตรา สี่ตำงลึง	16	Royal Printing Works, Royal Palace of Siam	1853; 1856
5 tamlueng	พระราชทานเงินตรา ห้าตำงลึง	20	Royal Printing Works, Royal Palace of Siam	1853; 1856
6 tamlueng	พระราชทานเงินตรา หกตำงลึง	24	Royal Printing Works, Royal Palace of Siam	1856
7 tamlueng	พระราชทานเงินตรา เจ็ดตำงลึง	28	Royal Printing Works, Royal Palace of Siam	1856
8 tamlueng	พระราชทานเงินตรา แปดตำงลึง	32	Royal Printing Works, Royal Palace of Siam	1856
10 tamlueng	พระราชทานเงินตรา สิบตำงลึง	40	Royal Printing Works, Royal Palace of Siam	1853; 1856
12 tamlueng	พระราชทานเงินตรา สิบสองตำงลึง	48	Royal Printing Works, Royal Palace of Siam	1856
15 tamlueng	พระราชทานเงินตรา สิบห้าตำงลึง	60	Royal Printing Works, Royal Palace of Siam	1856
1 chang	พระราชทานเงินตรา ชั่งหนึ่ง	80	Royal Printing Works, Royal Palace of Siam	1853; 1856
1 chang 5 tamlueng	พระราชทานเงินตรา ชั่งห้าตำงลึง	100	Royal Printing Works, Royal Palace of Siam	1856
1 chang 10 tamlueng	พระราชทานเงินตรา ชั่งสิบตำงลึง	140	Royal Printing Works, Royal Palace of Siam	1856

1868-1902 Rama 5 Era Banknotes

Royal Tresury Banknotes

Image	Value	Date of Issue
	1 At	1874
	1 Tical	1892
	5 Tical
	10 Tical
	40 Tical
	80 Tical
	100 Tical
	400 Tical
	800 Tical

The Hongkong and Shanghai Banking Corporation Limited (HSBC) Banknotes

Image	Value	Date of Issue
	1 Tical	1889
	5 Tical
	10 Tical
	40 Tical
	80 Tical
	100 Tical
	400 Tical

The Chartered Bank of India Australia & China Banknotes

Image	Value	Date of Issue
	5 Tical	1984
	10 Tical
	40 Tical
	80 Tical
	100 Tical
	400 Tical

Banque de L'Indo-Chine Banknotes

Image	Value	Date of Issue
	5 Tical	1986
	20 Tical
	80 Tical
	100 Tical

Money and unit of mass

Ngoen (เงิน) is Thai for "silver" as well as the general term for money, reflecting the fact that the baht (or tical) is foremost a unit of weight for precious metals and gemstones. One baht = 15.244 grams.^[67] Since the standard purity of Thai gold is 96.5 percent, the actual gold content of one baht by weight is 15.244 × 0.965 = 14.71046 grams; equivalent to about 0.473 troy ounces. 15.244 grams is used for bullion; in the case of jewellery, one baht should be more than 15.16 grams.

Historical coinage material


Example coin	Material	Date in use^[68]	Denomation minted
	Gold	1863–1905* the coins mintage date were only in 1863 & 1876*, but they were demonitized by the decimalization.	Predecimal coinage 1/4 baht (1 fueang) 1/2 baht 1 baht 2 baht 4 baht (1 tamlueng) 2 tamlueng
	Silver	1860–1962	Predecimal coinage 1/2 fueang 1/4 baht (1 fueang) 1/2 baht 1 baht 2 baht Decimal coinage 5 satang 10 satang 20 satang 25 satang 50 satang 1 baht
	Tin	1860–1950	Predecimal coinage 1/16 fueang 1/8 fueang Decimal coinage 1 satang 5 satang 10 satang 25 satang 50 satang
	Copper	1865–1905	Predecimal coinage 1/16 fueang 1/8 fueang 1/4 fueang 1/2 fueang
	Brass	1865–1977	Predecimal coinage 1/4 fueang 1/2 fueang Decimal coinage 25 satang
	Bronze	1887–1957	Predecimal coinage 1/16 fueang 1/8 fueang 1/4 fueang Decimal coinage 1/2 satang 1 satang 5 satang 10 satang
	Nickel	1908–1937	Decimal coinage 5 satang 10 satang
	Aluminium bronze	1950–present	Decimal coinage 5 satang 10 satang 25 satang 50 satang
	Cupronickel	1897–present	Transitional coinage 2 1/2 satang 5 satang 10 satang 20 satang Decimal coinage 1 baht 5 baht 10 baht (outer ring)
	Nickelplated steel	2005–present	Decimal coinage 1 baht 2 baht
*inner part	Copper-aluminium-nickel	2008–present	Decimal coinage 5 baht 10 baht (inner plug)
*no wiki-image exist a Al-Br coin version is used	Copperplated steel	2008–present	Decimal coinage 25 satang 50 satang
This table only includes milled coins. Photduang, knife-cash, etc, are not included.

Exchange rates

Historical exchange rate of USD/THB from 1980 to 2015

Historical exchange rate of EUR/THB since 2005

The Bank of Thailand adopted a series of exchange controls on 19 December 2006, which resulted in a significant divergence between offshore and onshore exchange rates, with spreads of up to 10 percent between the two markets. Controls were broadly lifted on 3 March 2008 and there is now no significant difference between offshore and onshore exchange rates.^[69]

USD/THB average exchange rate
2000	2001	2002	2003	2004	2005	2006	2007	2008	2009
40.24	40.26	37.92	32.34	32.99	34.34	31.73	30.48	31.07	30.71
2010	2011	2012	2013	2014	2015	2016	2017	2018	2019
32.48	34.25	35.28	33.91	32.48	34.25	35.30	33.94	32.31	31.05
2020	2021	2022	2023	2024	2025	2026	2027	2028	2029
31.30

(Source 1999–2013: usd.fx-exchange.com)

(Source 2014–2020: Bank of Thailand) [5] Archived 2021-01-23 at the Wayback Machine

Current THB exchange rates
From Google Finance:	AUD CAD CHF CNY EUR GBP HKD JPY USD INR TWD
From Yahoo! Finance:	AUD CAD CHF CNY EUR GBP HKD JPY USD INR TWD
From XE.com:	AUD CAD CHF CNY EUR GBP HKD JPY USD INR TWD
From OANDA:	AUD CAD CHF CNY EUR GBP HKD JPY USD INR TWD

References

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^ เหรียญกษาปณ์ของไทย [Coins of Thailand]. Ministry of Defense of Thailand (in Thai). Archived from the original on 2012-02-04. Retrieved 15 October 2011.
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^ รัชกาลที่ 4 รับสั่งทำ "เหรียญกระษาปณ์" รับมือการค้ากับต่างชาติ [King Mongkut ordered the production of western style coins as the response to the rising trades with foreigners]. Silpa Watthanatham Magazine (in Thai). 27 March 2019. Archived from the original on 21 November 2020. Retrieved 22 November 2020.
^ กฎกระทรวงการคลัง ออกตามความในพระราชบัญญัติ เงินตราในภาวะฉุกเฉิน พุทธศักราช 2484 (ฉะบับที่ 3) [Ministry of Finance Regulation issued according to Currency during the Emergency Situation of BE 2484 (Issue No. 3)]. Legislative Institutional Repository of Thailand (in Thai). Retrieved 22 November 2020.^{[permanent dead link]}
^ "The Currency Before and During the War by Prince Vivadhanajaya 21 July BE 2488 (1945)". วชิรญาณ. Archived from the original on 30 November 2020. Retrieved 23 November 2020.
^ จากระบบอัตราแลกเปลี่ยนอิงตะกร้าเงินสู่ระบบอัตราแลกเปลี่ยนลอยตัว [From Monetary FOREX system to floating FOREX] (PDF). เศรษฐสาร (in Thai). 11 (7 (July)). 1997 [BE 2540]. Archived (PDF) from the original on 7 March 2020. Retrieved 28 May 2012.
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^ "Banknotes, Series 1". Bank of Thailand. 23 February 2012. Archived from the original on 4 April 2016. Retrieved 9 May 2012. each denomination had many types which were printed by Thomas De La Rue & Company Limited, England.
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^ ISO/IEC 8859-11:2001 to Unicode (Report). Unicode Consortium. 2015-12-02.
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^ Shirriff, Ken (October 2, 2015). "Proposal for addition of bitcoin sign" (PDF). Unicode Consortium.
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^ ^a ^b ^c Lunde, Ken (March 26, 2016). "CJK Type | CJK Fonts, Character Sets & Encodings. All CJK. All of the time". Adobe Inc. Archived from the original on 29 June 2016.
^ "CJK compatibility 3300–33FF" (PDF). The Unicode Standard, Version 15.1. p. 3327–334C.
^ อันซีน "พิพิธภัณฑ์มีชีวิต ธนบัตรมีเรื่องราว" แห่งเดียวในประเทศไทย [Unseen living museum - Banknotes have stories from the unique museum in Thailand]. Matichon (in Thai). Archived from the original on 2015-12-22. Retrieved 8 December 2011.
^ Lekhakum, Nawarat (2009). เบี้ย บาท กษาปณ์แบงค์ [Cowrie, Baht, Coins, and Bank] โดย นวรัตน์ เลขะกุล (in Thai). สำนักพิมพ์สารคดี [Sarakhadee Press].
^ ^a ^b ^c Watanalumleard, S. "The Story of Photduang". coinmuseum. Retrieved August 7, 2024.
^ Wattanalumleard, S. "The Story of Photduang". coinmuseum. Retrieved August 7, 2024.
^ The Treasury Department (January 3, 2020). "ราคาประเมินมูลค่าเงินตราโบราณ". www.treasury.go.th. Archived from the original on June 8, 2023. Retrieved September 4, 2023.
^ "1835 Rama III unadopted design copper coin "Lotus - MuangThai"". Archived from the original on 2015-12-22. Retrieved 2015-10-20.
^ เงินตรา. Royal Thai Mint (in Thai). Archived from the original on 4 March 2016. Retrieved 20 October 2015.
^ "1 Fueang - Rama IV, Thailand". en.numista.com. Retrieved 2024-03-05.
^ "2½ Baht". en.numista.com. Retrieved 2024-03-05.
^ "4 Baht". en.numista.com. Retrieved 2024-03-05.
^ "8 Baht". en.numista.com. Retrieved 2024-03-05.
^ "1 Fuang - Rama V, Thailand". en.numista.com. Retrieved 2024-03-05.
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^ "Current coins – Royal Thai Mint". Archived from the original on 2019-06-25. Retrieved 2019-06-17.
^ Gibbs, William T. (Feb 11, 2002). "Thai bahts causing euro problems - 10-baht coins work in place of 2-euro coins in machines". Coin World. Amos Press. Archived from the original on March 2, 2009.
^ http://www.bangkokpost.com/business/economics/32096/20-baht-coins-may-substitute-banknotes.^{[dead link]}
^ "Banknotes, Series 1". Bank of Thailand. Feb 26, 2012. Archived from the original on April 4, 2016. Retrieved November 22, 2012. The design was printed only on one side; so the note was called 'Uniface banknote'. There were 7 denominations....
^ "Banknotes, Series 2". Bank of Thailand. Feb 26, 2012. Archived from the original on July 4, 2012. on the back side was the picture of the Royal Ploughing Ceremony. This type of banknote was called "Ploughing Ceremony Note".
^ Duncan Stearn (27 June – 3 July 2003). "Rise of state-sponsored militarism and socialism". Pattaya Mail. XI (26). Pattaya: Pattaya Mail Publishing Co. Archived from the original on 1 November 2011. Retrieved 18 Feb 2012. Does Japan dominate Siam?" I asked a leading Englishman in Bangkok. He laughed quietly: "Have you any Siamese money?" he asked. I drew out a five-ticul note (about 2 dollars 50c). "Read what is printed at the foot of the note", he commanded. I read, "Thomas de la Rue and Co., London". With calm confidence he said: "As long as the word 'London' stands on that Siamese bill, it is not Japan but another little island which will have the larger say in the Kingdom of Siam.
^ "New banknotes coming in December". The Nation. 2010-07-28. Archived from the original on 2010-07-29. Retrieved 2010-07-28. new Thai banknote will circulate in December 2010
^ "Thailand to issue new note family in December 2010". Archived from the original on 2011-08-12. Retrieved 2010-11-03.
^ "The Introduction of Two Commemorative Banknotes on the Auspicious Occasions of Her Majesty the Queen's 80th Birthday Anniversary 12 August 2012 and His Royal Highness Crown Prince Maha Vajiralongkorn's 5th Cycle Birthday Anniversary" (PDF). Bank of Thailand. 3 July 2012. Archived (PDF) from the original on 2022-10-09. Retrieved 18 October 2012.
^ Commemorative Banknote in Remembrance of His Majesty King Bhumibol Adulyadej Archived 2017-12-01 at the Wayback Machine Bank of Thailand (www.bot.or.th). Retrieved on 2017-07-21.
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^ Wararat, service manager. "Reproduction of Thai banknotes". Bank of Thailand. Archived from the original on 2011-12-06. Retrieved 27 Nov 2011. In Thailand, the Bank of Thailand (BOT) has the sole right to design, produce, issue, circulate and manage Thai banknotes. The reproduction of Thai banknotes is protected by the Copyright Act B.E. 2537 Ch.1 Pt.5 §27 (2) communication to public.
^ "Series 14". www.bot.or.th. Retrieved 2024-08-24.
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Sources

Cecil Carter eds. ^{[clarification needed]}, The Kingdom of Siam 1904, reprint by the Siam Society 1988, ISBN 974-8298-13-2, chapter X Currency and Banking
Krause, Chester L.; Clifford Mishler (1991). Standard Catalog of World Coins: 1801–1991 (18th ed.). Krause Publications. ISBN 0873411501.
Pick, Albert (1994). Standard Catalog of World Paper Money: General Issues. Colin R. Bruce II and Neil Shafer (editors) (7th ed.). Krause Publications. ISBN 0-87341-207-9.

External links

(in Thai) Compare exchange rates of the Thai Baht from many bank in Thailand (archived)
(in English, German, and French) The banknotes of Thailand (archived)

[1] [1] Archived 2019-04-22 at the Wayback Machine RMB Tracker February 2019 Archived 2019-04-22 at the Wayback Machine

[2] "Thailand Commemorative Bullet Coins (112)". Scott Semans World Coins. Archived from the original on 11 November 2017. Retrieved 25 October 2018.

[3] "The History of Siamese Money". Welcome to Chiangmai & Chiangrai. June 16, 2010. Archived from the original on September 28, 2011. Retrieved October 25, 2018.

[4] เหรียญกษาปณ์ของไทย [Coins of Thailand]. Ministry of Defense of Thailand (in Thai). Archived from the original on 2012-02-04. Retrieved 15 October 2011.

[5] เงินตรา [Money] (in Thai). Royal Thai Mint. Archived from the original on 4 March 2016. Retrieved 22 November 2020.

[:9-6] รัชกาลที่ 4 รับสั่งทำ "เหรียญกระษาปณ์" รับมือการค้ากับต่างชาติ [King Mongkut ordered the production of western style coins as the response to the rising trades with foreigners]. Silpa Watthanatham Magazine (in Thai). 27 March 2019. Archived from the original on 21 November 2020. Retrieved 22 November 2020.

[7] กฎกระทรวงการคลัง ออกตามความในพระราชบัญญัติ เงินตราในภาวะฉุกเฉิน พุทธศักราช 2484 (ฉะบับที่ 3) [Ministry of Finance Regulation issued according to Currency during the Emergency Situation of BE 2484 (Issue No. 3)]. Legislative Institutional Repository of Thailand (in Thai). Retrieved 22 November 2020.^{[permanent dead link]}

[8] "The Currency Before and During the War by Prince Vivadhanajaya 21 July BE 2488 (1945)". วชิรญาณ. Archived from the original on 30 November 2020. Retrieved 23 November 2020.

[9] จากระบบอัตราแลกเปลี่ยนอิงตะกร้าเงินสู่ระบบอัตราแลกเปลี่ยนลอยตัว [From Monetary FOREX system to floating FOREX] (PDF). เศรษฐสาร (in Thai). 11 (7 (July)). 1997 [BE 2540]. Archived (PDF) from the original on 7 March 2020. Retrieved 28 May 2012.

[10] ลดค่าเงินบาทในภาษาที่ทุกคนเข้าใจ โดย เสรี ทรัพย์เจริญ นิตยสารผู้จัดการ พฤศจิกายน 2527 (in Thai). Archived from the original on 25 December 2015. Retrieved 22 November 2020.

[JSS_033_2c_Campos-11] Campos, J. J. (1941). "The Origin of the Tical" (PDF). Journal of the Siam Society. 33.2c. Siam Heritage Trust. Archived (PDF) from the original on 2022-10-09. Retrieved June 23, 2013. From the earliest times in Southern Burma, the weight adopted were not the Chinese liang or tael or its variants, but the Indian bahur and the viss, the latter being divided into 100 ticals. It is this Burmese tical, which was and continues to be in Burma the designation of a definite weight of uncoined silver or its compound, that throws light on the problem of the Thai tical.

[12] "Banknotes, Series 1". Bank of Thailand. 23 February 2012. Archived from the original on 4 April 2016. Retrieved 9 May 2012. each denomination had many types which were printed by Thomas De La Rue & Company Limited, England.

[13] "Banknotes, Series 2". Bank of Thailand. 22 November 2020. Archived from the original on 4 July 2012. Retrieved 22 November 2020.

[14] ISO/IEC 8859-11:2001 to Unicode (Report). Unicode Consortium. 2015-12-02.

[15] "Chapter 3/2" (PDF). The Unicode Standard, version 1.0. October 1991. p. 80.

[DPD-16] "Símbolos o signos no alfabetizables". Diccionario panhispánico de dudas (in Spanish) (2.ª (versión provisional) ed.). Real Academia Española y Asociación de Academias de la Lengua Española. Retrieved 16 July 2024.

[17] "พระราชบัญญัติเงินตรา พ.ศ. 2501 (ฉบับประมวล)" (PDF). Bank of Thailand (in Thai). 2002. Retrieved 6 June 2024.

[18] Shirriff, Ken (October 2, 2015). "Proposal for addition of bitcoin sign" (PDF). Unicode Consortium.

[unicode-10-19] "Unicode 10.0.0". Unicode Consortium. 20 June 2017. Retrieved 20 June 2017.

[Lunde-20] Lunde, Ken (March 26, 2016). "CJK Type | CJK Fonts, Character Sets & Encodings. All CJK. All of the time". Adobe Inc. Archived from the original on 29 June 2016.

[21] "CJK compatibility 3300–33FF" (PDF). The Unicode Standard, Version 15.1. p. 3327–334C.

[22] อันซีน "พิพิธภัณฑ์มีชีวิต ธนบัตรมีเรื่องราว" แห่งเดียวในประเทศไทย [Unseen living museum - Banknotes have stories from the unique museum in Thailand]. Matichon (in Thai). Archived from the original on 2015-12-22. Retrieved 8 December 2011.

[23] Lekhakum, Nawarat (2009). เบี้ย บาท กษาปณ์แบงค์ [Cowrie, Baht, Coins, and Bank] โดย นวรัตน์ เลขะกุล (in Thai). สำนักพิมพ์สารคดี [Sarakhadee Press].

[:02-24] Watanalumleard, S. "The Story of Photduang". coinmuseum. Retrieved August 7, 2024.

[25] Wattanalumleard, S. "The Story of Photduang". coinmuseum. Retrieved August 7, 2024.

[:0-26] The Treasury Department (January 3, 2020). "ราคาประเมินมูลค่าเงินตราโบราณ". www.treasury.go.th. Archived from the original on June 8, 2023. Retrieved September 4, 2023.

[27] "1835 Rama III unadopted design copper coin "Lotus - MuangThai"". Archived from the original on 2015-12-22. Retrieved 2015-10-20.

[28] เงินตรา. Royal Thai Mint (in Thai). Archived from the original on 4 March 2016. Retrieved 20 October 2015.

[29] "1 Fueang - Rama IV, Thailand". en.numista.com. Retrieved 2024-03-05.

[30] "2½ Baht". en.numista.com. Retrieved 2024-03-05.

[31] "4 Baht". en.numista.com. Retrieved 2024-03-05.

[32] "8 Baht". en.numista.com. Retrieved 2024-03-05.

[33] "1 Fuang - Rama V, Thailand". en.numista.com. Retrieved 2024-03-05.

[34] "2½ Satang - Rama V, Thailand". en.numista.com. Retrieved 2024-03-05.

[35] "Current coins – Royal Thai Mint". Archived from the original on 2019-06-25. Retrieved 2019-06-17.

[36] Gibbs, William T. (Feb 11, 2002). "Thai bahts causing euro problems - 10-baht coins work in place of 2-euro coins in machines". Coin World. Amos Press. Archived from the original on March 2, 2009.

[37] ttp://www.bangkokpost.com/business/economics/32096/20-baht-coins-may-substitute-banknotes.^{[dead link]}

[38] "Banknotes, Series 1". Bank of Thailand. Feb 26, 2012. Archived from the original on April 4, 2016. Retrieved November 22, 2012. The design was printed only on one side; so the note was called 'Uniface banknote'. There were 7 denominations....

[39] "Banknotes, Series 2". Bank of Thailand. Feb 26, 2012. Archived from the original on July 4, 2012. on the back side was the picture of the Royal Ploughing Ceremony. This type of banknote was called "Ploughing Ceremony Note".

[40] Duncan Stearn (27 June – 3 July 2003). "Rise of state-sponsored militarism and socialism". Pattaya Mail. XI (26). Pattaya: Pattaya Mail Publishing Co. Archived from the original on 1 November 2011. Retrieved 18 Feb 2012. Does Japan dominate Siam?" I asked a leading Englishman in Bangkok. He laughed quietly: "Have you any Siamese money?" he asked. I drew out a five-ticul note (about 2 dollars 50c). "Read what is printed at the foot of the note", he commanded. I read, "Thomas de la Rue and Co., London". With calm confidence he said: "As long as the word 'London' stands on that Siamese bill, it is not Japan but another little island which will have the larger say in the Kingdom of Siam.

[41] "New banknotes coming in December". The Nation. 2010-07-28. Archived from the original on 2010-07-29. Retrieved 2010-07-28. new Thai banknote will circulate in December 2010

[42] "Thailand to issue new note family in December 2010". Archived from the original on 2011-08-12. Retrieved 2010-11-03.

[Press_release_No._36-43] "The Introduction of Two Commemorative Banknotes on the Auspicious Occasions of Her Majesty the Queen's 80th Birthday Anniversary 12 August 2012 and His Royal Highness Crown Prince Maha Vajiralongkorn's 5th Cycle Birthday Anniversary" (PDF). Bank of Thailand. 3 July 2012. Archived (PDF) from the original on 2022-10-09. Retrieved 18 October 2012.

[44] Commemorative Banknote in Remembrance of His Majesty King Bhumibol Adulyadej Archived 2017-12-01 at the Wayback Machine Bank of Thailand (www.bot.or.th). Retrieved on 2017-07-21.

[45] The Bank of Thailand Launches New Series of Thai Banknotes (Series 17) Archived 2018-03-10 at the Wayback Machine Bank of Thailand (https://www.bot.or.th Archived 2016-02-10 at the Wayback Machine). Retrieved on 2018-03-09.

[46] Wararat, service manager. "Reproduction of Thai banknotes". Bank of Thailand. Archived from the original on 2011-12-06. Retrieved 27 Nov 2011. In Thailand, the Bank of Thailand (BOT) has the sole right to design, produce, issue, circulate and manage Thai banknotes. The reproduction of Thai banknotes is protected by the Copyright Act B.E. 2537 Ch.1 Pt.5 §27 (2) communication to public.

[47] "Series 14". www.bot.or.th. Retrieved 2024-08-24.

[48] "50 Baht - Rama IX, Thailand". en.numista.com. Retrieved 2024-08-24.

[current-49] "Circulating Banknotes". Bank of Thailand. Archived from the original on 2013-02-20. Retrieved 2013-03-28.

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