Legal units of measurement
1 square kilometer (km) = 100 hectares (hm) = 247.1 acres (acre) = 0.386 square miles (mile)
1 square meter (m) = 10.764 square feet (ft) 1 are = 100 square meters (m)
1 hectare (hm) = 15 mu = 1 hm2 = 10000 square meters (m) = 2.471 acres (acre) = 0.01 square kilometers (where h stands for 100 meters, so hm2 means hectometer squared)
1 square mile (mile) = 2.590 square kilometers (km)
1 acre (acre) = 0.4047 hectares (ha) = 4.047×10 square kilometers (km) = 4047 square meters (m)
1 square foot (ft) = 0.093 square meter (m) 1 square inch (in) = 6.452 square centimeter (cm)
1 square yard (yd) = 0.8361 square meter (m)
1 mu = 2000/3 square meters ≈ 666.666 square meters
Chinese measurement units
1平方里=22500平方丈
1 square zhang=100 square chi
1 square chi=100 square cun
1 square cun=100 square fen
1 square fen=100 square li
1 square li=100 square hao
This tool belongs to the “Calculators & converters” category.
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Decimal conversions of binary storage differ in the last digits. Use a proper maths package for engineering work.
Both conventions are shown; the difference is the KiB/KB and MB definitions.
It demonstrates the annuity formula only. Actual costs follow your bank or contract.