The currency in Thailand is called a "baht" and fluxuates anywhere from 33.44 (THB) to 35.50 (THB) of them equal one United States dollar. Some examples below show the average cost of things in that country...so figure accordingly.
Food and Drink Plate of Thai food, some rice and a soft drink at an average small restaurant 40THB to 70THB Plate of Thai food and a soft drink on Bangkok's Khao San road. 100THB Plate of western style food and a soft drink in tourist-orientated restaurant. 150THB - 300THB Meal for 2 at a high quality Thai restaurant 300THB to 500THB Macdonald's BigMac Meal - Small/Large 85THB/92THB Grilled chicken and sticky rice from a street vendor 20THB Large (630ml) 'Singha' beer from a 7-11 store 50THB Small (330ml) 'Singha' beer in an average bar 60THB to 150THB 1 litre of bottled water from a store 7THB to 12THB Low-end bottle of wine from a supermarket 450THB Packet of Thai kanom (snacks/sweets) 10THB Small Mars Bar 27THB 20 cigarettes (Western brand) 45THB 20 cigarettes (Thai brand) 20THB Accommodation Typical guesthouse room on Khao San Road (small, fan-cooled, shared cold-water bathroom) 150THB Typical 3* hotel room 800THB to 1200THB Typical 5* hotel room 3000THB + Discounted room at the Oriental Hotel (arguably the world's best hotel) US$250 / 10000THB Luxury apartment (per month) 20000THB + Central Bangkok apartment with good facilities (per month) 8000THB to 20000THB Non-central cheap apartment with few/no facilities (per month) 2000THB to 4000THB Travel Average taxi or tuk-tuk fare round central Bangkok 70THB Ordinary / Aircon bus fare 3.5THB / 8THB - 16THB Average fare on the express boats and canal boats 5 to 10THB Chartering a longtail boat for one hour 400THB Average Skytrain fare 25THB Shopping Original Western music CD from a department store 450THB to 500THB Original Thai music CD from a department store 120THB Copied Western music CD from Khao San Road 180THB Pirate software from Panthip Plaza 150THB Fake Rolex watch 500THB Cheap T-Shirt 100THB Fake pair of Levi's 400THB General Cinema ticket 80THB to 120THB Entrance fee to some of the most popular discos/nightclubs (This usually entitles you to 2 or 3 'free' drinks) 300THB to 500THB Copy of 'The Nation' or 'Bangkok Post' newspaper 20THB Cheap haircut 60THB Internet access on a 56K modem, per hour 30THB to 180THB
Food and Drink Plate of Thai food, some rice and a soft drink at an average small restaurant 40THB to 70THB Plate of Thai food and a soft drink on Bangkok's Khao San road. 100THB Plate of western style food and a soft drink in tourist-orientated restaurant. 150THB - 300THB Meal for 2 at a high quality Thai restaurant 300THB to 500THB Macdonald's BigMac Meal - Small/Large 85THB/92THB Grilled chicken and sticky rice from a street vendor 20THB Large (630ml) 'Singha' beer from a 7-11 store 50THB Small (330ml) 'Singha' beer in an average bar 60THB to 150THB 1 litre of bottled water from a store 7THB to 12THB Low-end bottle of wine from a supermarket 450THB Packet of Thai kanom (snacks/sweets) 10THB Small Mars Bar 27THB 20 cigarettes (Western brand) 45THB 20 cigarettes (Thai brand) 20THB Accommodation Typical guesthouse room on Khao San Road (small, fan-cooled, shared cold-water bathroom) 150THB Typical 3* hotel room 800THB to 1200THB Typical 5* hotel room 3000THB + Discounted room at the Oriental Hotel (arguably the world's best hotel) US$250 / 10000THB Luxury apartment (per month) 20000THB + Central Bangkok apartment with good facilities (per month) 8000THB to 20000THB Non-central cheap apartment with few/no facilities (per month) 2000THB to 4000THB Travel Average taxi or tuk-tuk fare round central Bangkok 70THB Ordinary / Aircon bus fare 3.5THB / 8THB - 16THB Average fare on the express boats and canal boats 5 to 10THB Chartering a longtail boat for one hour 400THB Average Skytrain fare 25THB Shopping Original Western music CD from a department store 450THB to 500THB Original Thai music CD from a department store 120THB Copied Western music CD from Khao San Road 180THB Pirate software from Panthip Plaza 150THB Fake Rolex watch 500THB Cheap T-Shirt 100THB Fake pair of Levi's 400THB General Cinema ticket 80THB to 120THB Entrance fee to some of the most popular discos/nightclubs (This usually entitles you to 2 or 3 'free' drinks) 300THB to 500THB Copy of 'The Nation' or 'Bangkok Post' newspaper 20THB Cheap haircut 60THB Internet access on a 56K modem, per hour 30THB to 180THB