Unit Definition (ngarn) The ngarn is a unit of land area in Thailand. The ngarn equals 1/4 rai, 100 talangwah (tw), or exactly 400 square meters (478.396 square yards or just under 0.1 acre).
Unit Definition (square yard) The square yard is a traditional unit of area. 1 yd2 equals 9 ft2, 1296 in2, or exactly 0.836 127 36 m2.
