(100) square centimeter = 1 square decimeter

(100) square decimeter = 1 square meter

(10000) m2 = 1 hectare

(100) hectare = 1 km2.

Unit conversion

Unit conversion:1m2 (1m2) =100dm? (100 square decimeter) = 10000cm? ( 10000 cm2)= 1000000mm？ (1000000 mm2) = 0.0001hectare =0.00000 1km? (0.000001km2) = 0.01hectare = 0.00044 1054 acre = 0.00 1 square mile =10+038.