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

Quick Reference

1 Rai = 1.5999999999999998e+33 Square Fermi

1 Square Fermi = 6.250e-34 Rai

Rai to Square Fermi Conversion Formula

To convert Rai to Square Fermi, multiply by 1.5999999999999998e+33.

Square Fermi = Rai × 1.5999999999999998e+33

Rai = Square Fermi × 6.250e-34

To convert Square Fermi back to Rai, divide by 1.5999999999999998e+33 (or multiply by 6.250e-34).

About These Units

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.

About Square Fermi

The square fermi is a unit of area equal to the area of a square with sides of one fermi (femtometer). It is used in nuclear physics for measuring nuclear cross-sections and interactions.

Rai to Square Fermi Conversion Table

Rai	Square Fermi	Square Fermi	Rai
0.1	1.6e+32	0.1	6.250e-35
0.5	7.999999999999999e+32	0.5	3.125e-34
1	1.5999999999999998e+33	1	6.250e-34
2	3.1999999999999996e+33	2	1.250e-33
5	8e+33	5	3.125e-33
10	1.6e+34	10	6.250e-33
20	3.2e+34	20	1.250e-32
25	4e+34	25	1.563e-32
50	8e+34	50	3.125e-32
100	1.6e+35	100	6.250e-32
250	4e+35	250	1.563e-31
500	8e+35	500	3.125e-31
1000	1.6e+36	1000	6.250e-31

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