sq-meters to rai | Exact Decimal + Formula

1 Square Meter = 0.000625 Rai (Thailand)

One rai equals exactly 1,600 square meters — a fixed ratio you can memorize. Real-world use: floor areas, land parcels, and construction quantities in metric countries. 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 Square Meter and Rai (Thailand)

Square Meter (m²)

A square meter is the area of a square with 1-meter sides, the SI unit of area.

Where it's used: Floor areas, land parcels, and construction quantities in metric countries.

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.

Area Converter

From

Tab Switch fieldsS SwapC Copy

Precision

Formula

rai = m² × 0.000625

To convert Square Meter to Rai (Thailand), use the formula displayed above.

Pinned Favorites

No pinned converters yet. Click the star button to pin common pairs.

Recent History

Conversions you copy will be recorded here.

Square Meter to Rai (Thailand): Quick Reference Table

Square Meter	Rai (Thailand) (Decimal)	Fraction	Real-world equivalent
0.001 m²	6.2500e-7 rai	-	fractional unit measurement
0.01 m²	0.000006 rai	-	fractional unit measurement
0.1 m²	0.000063 rai	-	fractional unit measurement
0.5 m²	0.000313 rai	-	fractional unit measurement
1 m²	0.000625 rai	-	fractional unit measurement
2 m²	0.00125 rai	-	fractional unit measurement
5 m²	0.003125 rai	-	fractional unit measurement
10 m²	0.00625 rai	-	fractional unit measurement
25 m²	0.015625 rai	1/64 rai	fractional unit measurement
50 m²	0.03125 rai	1/32 rai	fractional unit measurement
100 m²	0.0625 rai	1/16 rai	fractional unit measurement
250 m²	0.15625 rai	5/32 rai	fractional unit measurement
500 m²	0.3125 rai	5/16 rai	fractional unit measurement
1000 m²	0.625 rai	5/8 rai	fractional unit measurement

m² to rai Formula and Examples

Direct Formula rai = m² × 0.000625

Inverse Formula m² = rai × 1600

Mental Math Shortcut

Divide the value by roughly 1600 to quickly estimate the converted result.

Common Square Meter to Rai (Thailand) Calculations

5 m² = 0.003125 rai
10 m² = 0.00625 rai
50 m² = 0.03125 rai
100 m² = 0.0625 rai
500 m² = 0.3125 rai

Precision & Practical Use

For example, 10 m² = 0.00625 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.

Related Specialist Area Calculators & Niche Tools

Area conversions (square feet, square meters, acres, and hectares) are vital in real estate, landscaping, and construction. However, ordering materials requires converting flat surface measurements into material counts.

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.

Square Footage Calc Determine room area measurements. Roofing Square Calc Calculate roofing squares needed. Tile Coverage Calc Estimate tiles and grout requirements. Mulch Coverage Calc Calculate mulch volume and weight. Paint Coverage Calc Estimate gallons of paint required.

How to Convert Square Meter to Rai (Thailand)

How many rai (thailand)s are in one square meter?

One Square Meter (m²) equals 0.000625 Rai (Thailand) (rai). To convert square meters to rai (thailand)s, multiply the square meter value by 0.000625.

How do I convert Square Meter to Rai (Thailand)?

Multiply your square meter value by 0.000625 to get the result in Rai (Thailand): rai = m² × 0.000625. For example, 5 m² = 0.003125 rai.

What is the formula for converting m² to rai?

The conversion formula is rai = m² × 0.000625. 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 m² to rai?