Square kilometer (km²)

A unit of area.

Symbol: km²
System: SI
Category: Area
Exact?: Yes

Also written as: km2, sqkm, square kilometer

Common conversions from km²

1 km² = 1,000,000 m²

Square kilometer → Square meter

1 km² = 10,000,000,000 cm²

Square kilometer → Square centimeter

1 km² = 1,000,000,000,000 mm²

Square kilometer → Square millimeter

1 km² = 100 ha

Square kilometer → Hectare

1 km² = 10,000 a

Square kilometer → Are

1 km² = 1,550,003,100.01 in²

Square kilometer → Square inch

1 km² = 10,763,910.42 ft²

Square kilometer → Square foot

1 km² = 1,195,990.05 yd²

Square kilometer → Square yard

1 km² = 0.386102 mi²

Square kilometer → Square mile

1 km² = 247.1054 ac

Square kilometer → Acre