tsubo to rai | Exact Decimal + Formula

1 Tsubo (Japan) = 0.002066 Rai (Thailand)

One rai equals about 484 tsubos (exactly 484.0007502 tsubo). Real-world use: japanese real-estate and office-space measurement; 100 tsubo equal one bu. 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 Tsubo (Japan) and Rai (Thailand)

Tsubo (Japan) (tsubo)

A tsubo is a Japanese area unit equal to about 3.306 square meters (one 6-foot ken squared).

Where it's used: Japanese real-estate and office-space measurement; 100 tsubo equal one bu.

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 = tsubo × 0.002066112

To convert Tsubo (Japan) to Rai (Thailand), use the formula displayed above.

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Tsubo (Japan) to Rai (Thailand): Quick Reference Table

Tsubo (Japan)	Rai (Thailand) (Decimal)	Fraction	Real-world equivalent
0.001 tsubo	0.000002 rai	-	fractional unit measurement
0.01 tsubo	0.000021 rai	-	fractional unit measurement
0.1 tsubo	0.000207 rai	-	fractional unit measurement
0.5 tsubo	0.001033 rai	-	fractional unit measurement
1 tsubo	0.002066 rai	-	fractional unit measurement
2 tsubo	0.004132 rai	-	fractional unit measurement
5 tsubo	0.010331 rai	1/64 rai	fractional unit measurement
10 tsubo	0.020661 rai	1/64 rai	fractional unit measurement
25 tsubo	0.051653 rai	3/64 rai	fractional unit measurement
50 tsubo	0.103306 rai	7/64 rai	fractional unit measurement
100 tsubo	0.206611 rai	13/64 rai	fractional unit measurement
250 tsubo	0.516528 rai	33/64 rai	fractional unit measurement
500 tsubo	1.033056 rai	1 1/32 rai	standard single unit scale
1000 tsubo	2.066113 rai	2 1/16 rai	standard single unit scale

tsubo to rai Formula and Examples

Direct Formula rai = tsubo × 0.002066112

Inverse Formula tsubo = rai × 484.00075

Mental Math Shortcut

Divide the value by roughly 484 to quickly estimate the converted result.

Common Tsubo (Japan) to Rai (Thailand) Calculations

5 tsubo = 0.010331 rai
10 tsubo = 0.020661 rai
50 tsubo = 0.103306 rai
100 tsubo = 0.206611 rai
500 tsubo = 1.033056 rai

Precision & Practical Use

For example, 10 tsubo = 0.020661 rai — roughly fractional unit measurement.

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 Tsubo (Japan) to Rai (Thailand)

How many rai (thailand)s are in one tsubo (japan)?

One Tsubo (Japan) (tsubo) equals 0.002066 Rai (Thailand) (rai). To convert tsubo (japan)s to rai (thailand)s, multiply the tsubo (japan) value by 0.002066.

How do I convert Tsubo (Japan) to Rai (Thailand)?

Multiply your tsubo (japan) value by 0.002066 to get the result in Rai (Thailand): rai = tsubo × 0.002066. For example, 5 tsubo = 0.010331 rai.

What is the formula for converting tsubo to rai?

The conversion formula is rai = tsubo × 0.002066. 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 tsubo to rai?