The official Thailand currency is the baht, which consists of 100 satang. One baht is worth approximately four cents in Australian dollars, with an average meal costing around 150 baht. In 1897, Prince Mahisorn devised the decimal system which King Chulalongkorn used to replace a previously more complicated system. It was this decimal systems that established the one baht equivalent of 100 satang. However, coin denominations were still issued in the older units up until 1910, with 25 satang (cents) and the corresponding coin still known as the salueng.
Thailand currency is comprised of coin denominations that range from 1 satang to 10 baht and banknotes that start at 20 baht and go as high as 1000 baht. Coin denominations are 1 satang, 5 satang, 10 satang, 25 satang, 50 satang, 1 baht, 2 baht, 5 baht and 10 baht. Coins range in physical size and are made from aluminium and magnesium compounds, aluminium bronze, copper plated steel and nickel plated steel. Each coin features the likeness of King Bhumibol Adulyadej on one side and a rendering of iconic temples throughout the country on the other.
Thailand currency also features banknote denominations of 20 baht, 50 baht, 100 baht, 500 baht and 1000 baht. All notes feature the King Bhumibol Adulyadej on one side and are colour coded. The 20 baht is green and features King Ananda Mahidol (Rama VIII) on the reverse while the 50 baht is blue and features King Mongkut (Rama IV) on the reverse. The 100 baht is red and features King Chulalongkorn (Rama V) and King Vajiravudh (Rama VI) on the reverse while the 500 baht is purple and features King Nangklao (Rama III) on the reverse. Finally, the 1000 baht is brown and features King Bhumibol Adulyadej; Pa Sak Jolasid Dam on the reverse.