Measurement of the area in the British system.1 feet is equal to 144, or 122 square inches.1 square yard equals 9 or 32 square feet.1 acre is equal to 4,840 square yards.1 square mile is equal to 640 acres, or 1,760 square yards.Area measurement units in Thailand100 square meters is equal to 1. 4. the work of 1 Rai. Or 400 square meters equals 1 Rai.A measurement of area in Thailand against the metric system.1 square Wah equals 4 square meters.1. the work is equal to 400 square meters.1 Rai equals 1,600 square meters.1 square kilometer is equal to 625 acres.Measurement of the area in the British system compared to the metric system (approx.)1 square inch is equal 6.4516 square centimeters.1 square foot equals 0.0929 square meters.1 square yard equals 0.8361 square meters.1 acre is equal to 4046.856 square meters (2.529 acres).1 square mile is equal to 2.5899 square kilometers.
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