In Thailand, the land measurements are different from European, UK, or US measurements. The land size is often shown in the local measurement units which are usually either: Wah, Talang Wah or Rai. Below is the conversion chart to help you calculate your land sizes clearly.
Metric to Thai
• 1 m = 0.5 Wah
• 1 sqm = 0.25 Talang Wah
• 1 Acre = 2.53 Rai
• 1 Hectare = 6.25 Rai
Thai to Metric
• 1 Wah = 2 m
• 1 Talang Wah = 4 sqm
• 1 Rai = 1600 sqm
• 1 Rai = 400 Talang Wah
• 1 Rai = 0.40 Acre (approx.)
• 1 Rai = 0.16 Hectare
• 1 Ngan = 100 Talang Wah
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