dunam to rai | Exact Decimal + Formula

1 Dunam (Metric) = 0.625 Rai (Thailand)

One rai equals about 1.6 dunams (exactly 1.6 dunam). Real-world use: land measurement in israel, palestine, turkey, and parts of the balkans. This page expresses those values in rais, which is used for thai land measurement; four ngan make one rai. Use the calculator above, then check the reference table for common values from 0.001 to 1000.

About Dunam (Metric) and Rai (Thailand)

Dunam (Metric) (dunam)

A dunam (metric) is exactly 1,000 square meters (0.1 hectare).

Where it's used: Land measurement in Israel, Palestine, Turkey, and parts of the Balkans.

Rai (Thailand) (rai)

A rai is a Thai area unit equal to 1,600 square meters (0.395 acre).

Where it's used: Thai land measurement; four ngan make one rai.

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Precision

Formula

rai = dunam × 0.625

To convert Dunam (Metric) to Rai (Thailand), use the formula displayed above.

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Dunam (Metric) to Rai (Thailand): Quick Reference Table

Dunam (Metric)	Rai (Thailand) (Decimal)	Fraction	Real-world equivalent
0.001 dunam	0.000625 rai	-	fractional unit measurement
0.01 dunam	0.00625 rai	-	fractional unit measurement
0.1 dunam	0.0625 rai	1/16 rai	fractional unit measurement
0.5 dunam	0.3125 rai	5/16 rai	fractional unit measurement
1 dunam	0.625 rai	5/8 rai	fractional unit measurement
2 dunam	1.25 rai	1 1/4 rai	standard single unit scale
5 dunam	3.125 rai	3 1/8 rai	standard single unit scale
10 dunam	6.25 rai	6 1/4 rai	standard single unit scale
25 dunam	15.625 rai	15 5/8 rai	multiple unit increments
50 dunam	31.25 rai	31 1/4 rai	multiple unit increments
100 dunam	62.5 rai	62 1/2 rai	multiple unit increments
250 dunam	156.25 rai	156 1/4 rai	multiple unit increments
500 dunam	312.5 rai	312 1/2 rai	multiple unit increments
1000 dunam	625 rai	-	multiple unit increments

dunam to rai Formula and Examples

Direct Formula rai = dunam × 0.625

Inverse Formula dunam = rai × 1.6

Mental Math Shortcut

Divide the value by roughly 1.6 to quickly estimate the converted result.

Common Dunam (Metric) to Rai (Thailand) Calculations

5 dunam = 3.125 rai
10 dunam = 6.25 rai
50 dunam = 31.25 rai
100 dunam = 62.5 rai
500 dunam = 312.5 rai

Precision & Practical Use

For example, 10 dunam = 6.25 rai — roughly standard single unit scale.

Real-estate and construction figures are usually rounded to the nearest square foot or square meter. Keep 2–3 significant figures unless you're doing engineering takeoffs.

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In home remodeling, flat wall and floor square footages are converted by paint coverage calculators (estimating paint gallons needed) or tile calculators (estimating tile counts, accounting for grout lines and a 10% waste factor). For roofing jobs, surface area is measured in roofing 'squares' (1 square = 100 sq ft). Landscapers use area calculators to estimate bulk mulch and topsoil volume in cubic yards. These specialized calculators bridge the gap between flat dimensional area and commercial material purchasing.

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How to Convert Dunam (Metric) to Rai (Thailand)

How many rai (thailand)s are in one dunam (metric)?

One Dunam (Metric) (dunam) equals 0.625 Rai (Thailand) (rai). To convert dunam (metric)s to rai (thailand)s, multiply the dunam (metric) value by 0.625.

How do I convert Dunam (Metric) to Rai (Thailand)?

Multiply your dunam (metric) value by 0.625 to get the result in Rai (Thailand): rai = dunam × 0.625. For example, 5 dunam = 3.125 rai.

What is the formula for converting dunam to rai?

The conversion formula is rai = dunam × 0.625. Use the calculator above for any value, and see the reference table below for common inputs from 0.001 to 1000.

Is there a quick mental estimate for dunam to rai?