Thailand’s Currency

Thai Money: History, Development, and Currency Exchange

Banknotes and Coins in Thailand

The Thai currency is called the baht (pronounced “bat”).
1 baht is divided into 100 satangs, but in daily life, you’ll rarely encounter satangs. You might see them in places like 7-Eleven or large supermarkets, but at restaurants, street markets, or tourist spots, no one will bother with such small change.

Coins

Coins in Thailand come in the following denominations:
25 and 50 satangs, 1, 2, 5, and 10 baht.
The 10 baht coin is bimetallic—it has a silver outer ring and a golden center. Usually, it features a portrait of the late King Bhumibol Adulyadej, but there are also numerous commemorative versions of this coin, so the design can vary.

Banknotes

Thai banknotes come in:
20, 50, 100, 500, and 1000 baht denominations.
In the past, there was a 10 baht banknote, but today it’s extremely rare and mostly out of circulation.

Every Thai coin and banknote is decorated with the portrait of the King. This is not just decoration—it’s a symbol of deep national respect. Mistreating Thai money is considered an offense because it’s seen as disrespectful to the monarchy. There have even been cases where foreigners faced legal trouble for careless handling of banknotes.

Current Exchange Rate

The Thai baht is a relatively stable currency, and for many years, its exchange rate has fluctuated only slightly.
As of now, the rate is around 36–37 baht for 1 US dollar, but it can vary depending on the market.

A Glimpse Into the History of Thai Money

Thailand’s monetary history is unique and exotic. One of the earliest forms of money here was cowrie shells, which were once used for trade across large parts of the world—including Africa, India, and China. Even in Europe, cowrie shells have been found in ancient burial sites!

From Cowries to Coins

During the reign of King Rama III (1824–1851), Thailand first began to think about switching to flat coins, mainly because cowries were becoming scarce. Inspired by Singapore’s copper coins (introduced in 1835), Thailand contacted Scottish traders to help mint experimental coins in England. However, these early designs were rejected by the King.

Up until 1860, Thailand didn’t produce modern coins. Instead, the kingdom used bullet coins (also known as “pot duang”)—small silver ingots shaped like rings or little bars.

Between 1858 and 1860, Thailand even used foreign coins that were stamped with official Thai marks to make them legal tender locally.

Decimal System and the Modern Baht

In 1897, under the rule of King Chulalongkorn (Rama V), Thailand adopted the decimal system, where 1 baht = 100 satangs. This reform aligned the Thai currency with international standards, although older coins continued to circulate until around 1910.

Even today, remnants of the old system survive in everyday language. For example, 25 satangs are often still called “salueng,” which is the traditional term.

The Silver Standard and Early Exchange Rates

Before November 27, 1902, the baht was tied to silver—15 grams of silver equaled 1 baht. This created problems when trying to compare it with countries using the gold standard.

Here’s how the baht compared to other currencies in the late 19th century:

  • 1 baht = 0.60 Straits dollar (Singapore currency of the time)
  • 5 baht = 7 Indian rupees
  • 8 baht = 1 British pound (before 1880)
  • Later, it shifted to 10 baht per pound in 1880

The Evolution of Thai Coins

Starting in 1860, Thailand introduced modern coins in various materials:

  • Silver coins: 1 sik, 1 fuang, 1 and 2 salueng, 1, 2, and 4 baht
  • Tin coins: 1862
  • Gold coins: 1863
  • Copper coins: 1865

The last Thai gold coins were minted in 1895.

In 1897, Thailand introduced nickel coins for 2, 5, 10, and 20 satangs. In 1908, they also issued holed coins, following the style of neighboring Asian countries.

During World War II, due to metal shortages, Thailand had to make adjustments:

  • 1941–1942: Silver coins of 5, 10, and 20 satangs
  • 1942–1945: Tin coins for 1, 5, 10, and 20 satangs
  • 1946: 25 and 50 satang coins appeared
  • 1950: 1 baht coins were made from a unique mix of copper, nickel, silver, and zinc

Ring-shaped Coins

It’s interesting to note that for centuries, Thailand used ring-shaped coins (similar to doughnuts!). But as trade with Europe increased, Thailand shifted to the familiar coin shapes we know today.

Banknotes: From “Equivalents” to Modern Money

The first Thai paper money appeared in the late 1800s, printed on English machines. These early banknotes were called “Equivalents,” a term some older Thais still use today.

In 1902, Thailand officially tied its currency value to gold standards while still respecting the silver market. Initially, the exchange rate was:

  • 21.75 baht = 1 British pound (1902)
  • 13 baht = 1 pound (1908)
  • 12 baht = 1 pound (1919)
  • 11 baht = 1 pound (1923)

During World War II, the baht was pegged to the Japanese yen.

The Dollar Era and the 1997 Asian Crisis

From 1956 to 1973, the baht was pegged to the US dollar at 20.8 baht per dollar, later adjusted to 20 baht per dollar in 1978.

Between 1984 and 1997, Thailand maintained a fixed rate of 25 baht per dollar.

Then came the Asian Financial Crisis in 1997, and the baht was floated on the open market. At its worst point in January 1998, the exchange rate reached 56 baht per dollar.

Today, the baht is much stronger, averaging 36–37 baht per dollar.

Thai Banknotes Through the Years

  • 1892: Ministry of Finance issued the first official paper notes in denominations of 1, 5, 10, 40, 80, 100, 400, and 800 baht
  • 1925: New notes printed with “baht” in both Thai and English
  • 1942: The Bank of Thailand was established and took over banknote production

Since then, Thai banknotes have gone through several design updates. In 2010, the 16th series of banknotes was introduced, and older notes are still accepted in circulation today.

Commemorative Coins and Banknotes

Thailand frequently issues special commemorative currency to mark significant national events. Examples include:

  • 60 baht (1987) – King Bhumibol’s 60th birthday
  • 50 & 500 baht (1990) – Queen Mother Srinagarindra’s 90th birthday
  • 1000 baht (1992) – Queen Sirikit’s 90th birthday
  • 10 baht (1996) – 120th anniversary of the Ministry of Finance
  • 50 & 500 baht (1996) – King Bhumibol’s 50th year on the throne (also issued in polymer for durability)
  • 1000 baht (1999) – King Bhumibol’s 72nd birthday

These commemorative bills and coins are often sought after by collectors but remain legal tender.

Final Thoughts

Thai currency is more than just a means of exchange—it reflects the country’s rich history, culture, and respect for the monarchy. Whether you’re handling modern baht or catching a glimpse of older coins and notes, you’re touching a piece of Thailand’s fascinating past.

Tip for travelers:
Keep your banknotes in good condition, never step on money, and handle it respectfully—it’s not just about etiquette, it’s about understanding the local culture.