Area units calculator & converter tool
Km2 Conversions Table
Equivalent of 1 km2 (Square Kilometer): |
1000000 m2 (Square meter) |
10000000000 cm2 (Square centimeter) |
100000000 dm2 (Square decimeter) |
1000000000000 mm2 (Square milimeter) |
100 Hectare |
10000 Are |
1000 Decare |
1000000 Centiare |
292.505 Arpent |
1000000000 Barn |
10763900 Square feet |
247.105 Acre |
39536.9 Square perche |
0.3861 Square mil |
1195990 Square yard |
1550004627.5963 Square inch |
0.01073 Canton |
1.544 Homestead |
988.4 Rood |
Km2 / Are Units Definition
km2 (Square Kilometer)
The square kilometer (km2) is a unit of measurement of area. One square kilometer is equal to the area of a square whose sides measure one kilometer.
Are
Are, unit of area in the metric system, equal to 100 square meters and the equivalent of 0.0247 acre. Its multiple, the hectare (equal to 100 ares), is the primary unit of land measurement for most of the world. The are was the basic unit of area when the metric system was first decreed in France in 1795. When the International System of Units (SI) was adopted in 1960, the square meter replaced the are as the unit of area, but the International Bureau of Weights and Measures accepted the hectare as the common unit that can be used with the SI.