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 / Hectare 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.
Hectare
hectare, unit of area in the metric system equal to 100 ares, or 10,000 square meters, and the equivalent of 2.471 acres in the British imperial system and the customary measurement of the United States. The term is derived from the Latin area and hect, an irregular contraction of the Greek word percent. Although the are is the primary metric unit of land measurement, the hectare is more commonly used in practice. The hectare is, by definition, equal to one djerib in Turkey, one jerib in Iran, one gong qing in mainland China, one manzana in Argentina and one bunder in the Netherlands.