Use this free online calculator to convert Bunder to Rai instantly. This area conversion tool provides accurate results for all your measurement needs.

Quick Reference

1 Bunder = 6.2500 Rai

1 Rai = 0.160000 Bunder

Bunder to Rai Conversion Formula

To convert Bunder to Rai, multiply by 6.2500.

Rai = Bunder × 6.2500

Bunder = Rai × 0.160000

To convert Rai back to Bunder, divide by 6.2500 (or multiply by 0.160000).

About These Units

About Bunder

The Bunder is a traditional Dutch unit of land area. Since the adoption of the metric system in the Netherlands in 1809 the bunder has been considered equal to the hectare (2.471 acres). Historically, the unit varied with locality, generally in the range 0.85-1.3 hectare. The unit was also used in Belgium, being called the bonnier in French-speaking provinces.

About Rai

The rai is a traditional unit of land area in Thailand. The rai is now considered to equal exactly 1600 square meters, which is 0.16 hectare or approximately 0.3954 acre. The rai is divided into 4 ngan. The unit is called the hai in northern Thailand and the lai in Laos. The word means "field," that is, an upland field rather than a rice paddy.

Bunder to Rai Conversion Table

Bunder	Rai	Rai	Bunder
0.1	0.625000	0.1	0.016000
0.5	3.1250	0.5	0.080000
1	6.2500	1	0.160000
2	12.5000	2	0.320000
5	31.2500	5	0.800000
10	62.5000	10	1.6000
20	125.0000	20	3.2000
25	156.2500	25	4.0000
50	312.5000	50	8.0000
100	625.0000	100	16.0000
250	1562.50	250	40.0000
500	3125.00	500	80.0000
1000	6250.00	1000	160.0000

Why Use Our Bunder to Rai Converter?

Instant and accurate area conversions
Free to use with no registration required
Mobile-friendly design for conversions on the go
Supports all major area units