How the Thai Gold Price per Baht Is Calculated from the World Price

International news quotes gold in US dollars per troy ounce (XAU/USD). In Thailand, gold is traded by the "baht-weight" at 96.5% purity. Here is how to convert one into the other.

Units you need

• 1 troy ounce = 31.1035 grams
• 1 baht-weight of gold bar = 15.244 grams
• Standard Thai gold purity is 96.5%

The formula

Thai gold price per baht ≈ world price (USD/oz) × exchange rate (THB/USD) ÷ 31.1035 × 15.244 × 0.965

Example: with gold at $4,000 and USD/THB at 33.50, the reference price is about 63,400 THB.

Why shop prices differ

1. Shops add a premium and a buy/sell spread
2. Jewellery includes a making charge
3. The Gold Traders Association updates its price in rounds, not every second

Our home page shows a world-market reference price — useful for following the trend. Always confirm with a shop or official source before buying or selling.

See the live gold price today on our home page.