Area units calculator & converter tool
Km2 Conversions Table
Equivalent of 20 km2 (Square Kilometer): |
20000000 m2 (Square meter) |
200000000000 cm2 (Square centimeter) |
2000000000 dm2 (Square decimeter) |
20000000000000 mm2 (Square milimeter) |
2000 Hectare |
200000 Are |
20000 Decare |
20000000 Centiare |
5850.1 Arpent |
20000000000 Barn |
215278000 Square feet |
4942.1 Acre |
790738 Square perche |
7.722 Square mil |
23919800 Square yard |
31000092551.925 Square inch |
0.2146 Canton |
30.88 Homestead |
19768 Rood |
Km2 / Dm2 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.
dm2 (Square decimeter)
Therefore, a square decimeter (or "square decimeter" in British spelling) is one tenth of a square meter. It can also be expressed by ten square centimeters. A rough example of a decimeter could be the average surface area of some smartphone screens.