What are measurements used for land in Thailand?

In Thailand, Land is measured in Rai, Ngan and Wah.

1 Rai = 4 Ngan (or 1600 Sq.m.)
1 Ngan = 100 Wah (or 400 Sq.m.)
1 Wah = 4 Sq.m.
1 Acer = 2.5 Rai
1 Hectare = 6.25 Rai

Land prices are usually expressed in Baht per Rai or Baht per Wah.
Condominium prices are usually expressed in Baht per Sq.m.

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