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  3. Land unit converter

LAND UNIT CONVERTER

Convert rai, ngan and wah to anything

Type a number, pick the unit you started with and see every equivalent at once — Thai (rai, ngan, talang wah), metric (m², hectares, km²) and imperial (acres, ft², yd², mi²). Built for the Thai property market.

Convert a land area

Convert a land area

Type a positive number in any unit — every other unit updates instantly.

Equivalents

Rai
1
Ngan
4
Talang wah (wah²)
400
Square metres (m²)
1,600
Hectares (ha)
0.16
Acres
0.3954
Square feet (ft²)
17,222.2567
Square yards (yd²)
1,913.5841
Square kilometres (km²)
0.0016
Square miles (mi²)
0.0006

Conversions are exact to the standard 1 rai = 1,600 m² and 1 talang wah = 4 m² (Royal Survey Department of Thailand).

How the converter works

All conversions reduce to square metres internally — so the answers stay exact whichever unit you start from.

Type any value

Enter a positive number in the value field. Decimals are fine — e.g. 2.5 rai or 0.75 acre.

Pick your source unit

Use the unit selector to tell us what your typed number represents.

Read every equivalent

We show Thai (rai, ngan, talang wah), metric (m², hectares, km²) and imperial (acres, ft², yd², mi²) at once.

Share or bookmark

The URL captures the current value and unit, so you can share or save a specific conversion.

Land unit FAQ for Thailand

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