Thai measuring units

Land Measurement

Converting Rai and Wah can be complex and can create legal issues when people do not understand what it is that they are signing at the contract stage. These are the basics for land conversion in the land measurement system in Thailand. Thailand does not have an Imperial or Metric system.
  • 1 sq. wah = 4 sq. m. 1 acre = 2.471 rai or 43,560 sq. ft.
  • 1 ngan = 100 wah (or 400 sq. m.) 1 hectare = 6.25 rai or 10,000 sq. m.
  • 1 Rai = 4 Ngan (or 1600 sq. m.)
SQ. WAH SQ. FT. SQ. M. NGAN RAI ACRE(S) HECTARE(S)
1 43 4
100 4,305 400 1 0.25 0.10 0.04
400 17,222 1,600 4 1 0.40 0.16
800 34,444 3,200 8 2 0.80 0.32
1,200 51,667 4,800 12 3 1.20 0.48
1,600 68,888 6,400 16 4 1.60 0.64
2,000 86,111 8,000 20 5 2.00 0.80
2,400 103,333 9,600 24 6 2.40 0.96
2,800 120,555 11,200 28 7 2.80 1.12
3,200 137,777 12,800 32 8 3.20 1.28
3,600 155,000 14,400 36 9 3.60 1.44
4,000 172,222 16,000 40 10 4.00 1.60
32,000 80 20 8.00 3.20
48,000 120 30 12.00 4.80
64,000 160 40 16.00 6.40
80,000 200 50 20.00 8.00
96,000 240 60 24.00 9.60
112,000 280 70 28.00 11.20
128,000 320 80 32.00 12.80
144,000 360 90 36.00 14.40
160,000 400 100 40.00

Leave a Reply

error: Content is protected !!