mu to rai | Exact Decimal + Formula

1 Mu (China) = 0.416667 Rai (Thailand)

One rai equals about 2.4 mu (exactly 2.39999988 mu). Real-world use: agricultural and rural land measurement across china; 15 mu equal one hectare. This page expresses those values in rais, which is used for thai land measurement; four ngan make one rai. Type a value above for an instant answer; the exact formula and the reference table are below.

About Mu (China) and Rai (Thailand)

Mu (China) (mu)

A mu is a Chinese area unit equal to 666.67 square meters (about 0.165 acre).

Where it's used: Agricultural and rural land measurement across China; 15 mu equal one hectare.

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 = mu × 0.416666688

To convert Mu (China) to Rai (Thailand), use the formula displayed above.

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Mu (China) to Rai (Thailand): Quick Reference Table

Mu (China)	Rai (Thailand) (Decimal)	Fraction	Real-world equivalent
0.001 mu	0.000417 rai	-	fractional unit measurement
0.01 mu	0.004167 rai	-	fractional unit measurement
0.1 mu	0.041667 rai	3/64 rai	fractional unit measurement
0.5 mu	0.208333 rai	13/64 rai	fractional unit measurement
1 mu	0.416667 rai	27/64 rai	fractional unit measurement
2 mu	0.833333 rai	53/64 rai	fractional unit measurement
5 mu	2.083333 rai	2 5/64 rai	standard single unit scale
10 mu	4.166667 rai	4 11/64 rai	standard single unit scale
25 mu	10.416667 rai	10 27/64 rai	multiple unit increments
50 mu	20.833334 rai	20 53/64 rai	multiple unit increments
100 mu	41.666669 rai	41 43/64 rai	multiple unit increments
250 mu	104.166672 rai	104 11/64 rai	multiple unit increments
500 mu	208.333344 rai	208 21/64 rai	multiple unit increments
1000 mu	416.666687 rai	416 43/64 rai	multiple unit increments

mu to rai Formula and Examples

Direct Formula rai = mu × 0.416666688

Inverse Formula mu = rai × 2.4

Mental Math Shortcut

Divide the value by roughly 2.4 to quickly estimate the converted result.

Common Mu (China) to Rai (Thailand) Calculations

5 mu = 2.083333 rai
10 mu = 4.166667 rai
50 mu = 20.833334 rai
100 mu = 41.666669 rai
500 mu = 208.333344 rai

Precision & Practical Use

For example, 10 mu = 4.166667 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 Mu (China) to Rai (Thailand)

How many rai (thailand)s are in one mu (china)?

One Mu (China) (mu) equals 0.416667 Rai (Thailand) (rai). To convert mu (china)s to rai (thailand)s, multiply the mu (china) value by 0.416667.

How do I convert Mu (China) to Rai (Thailand)?

Multiply your mu (china) value by 0.416667 to get the result in Rai (Thailand): rai = mu × 0.416667. For example, 5 mu = 2.083333 rai.

What is the formula for converting mu to rai?

The conversion formula is rai = mu × 0.416667. 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 mu to rai?