In Thailand, land measurements differ from European, UK, or US measurements. Land size is often given in the local units of measurement, which are usually either wah, talang wah, or rai. Below is the conversion table to help you calculate your plot sizes clearly.
Metric to Thai
• 1 m = 0,5 Wah
• 1 qm = 0,25 Talang Wah
• 1 Acre = 2,53 Rai
• 1 Hektar = 6,25 Rai
Thai to Metric
• 1 Wah = 2 m
• 1 Talang Wah = 4 qm
• 1 Rai = 1600 qm
• 1 Rai = 400 Talang-Wah
• 1 Rai = 0,40 Acre (ca.)
• 1 Rai = 0,16 Hektar
• 1 Ngan = 100 Talang Wah