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1 hectare = how many square kilometers = how many square meters.
1 ha =1100 square kilometers = 10000 square meters.

The unit symbol of hectare is hm? It means 100 square meter, that is 10000 square meter, that is 1 hectare.

Extended data:

Other area units and conversion:

1 km2 (km? ) = 100 hectare (ha)= 247. 1 acre)= 0.386 square mile (mile? )

1 m2 (m? ) = 10.764 square feet (feet? )

1 mu (average) = 100 m2 (m? )

1 hectare = 15 mu = 1hm? =10000m2 (m)= 2.47 1 acre (acre)=0.0 1 km2 (where h stands for100m, hm? It means 100 meter squared)

1 square mile (mile? ) = 2.590 square kilometers (km? )

1 acre) = 0.4047 hectare (ha)= 4.047× 10 square kilometer (km? ) = 4047 square meters (m? )

1 square foot? )= 0.093 m2 (m? )

1 square inch (inch? ) = 6.452 square centimeters (cm? )

1 square code (yd? )= 0.836 1 m2 (m? )

1 mu = 2000/3m2 ≈ 666.666m2.

References:

Hectares-Baidu Encyclopedia