Square Kilometer is an area unit used to describe surface size, land coverage or geometric sections.
The prefix kilo- (one thousand, from Greek chilioi) was part of the original French metric system of 1795; the square kilometer is the usual unit for the area of cities, regions and countries.
Measurement system: Metric, imperial and land-measurement area usage. SI equivalent: 1 km² = 1.000000e+6 m².
Square Kilometer facts
- Unit name
- Square Kilometer
- Symbol
- km²
- Category
- Area
- Measurement system
- Metric, imperial and land-measurement area usage
- SI equivalent
- 1 km² = 1.000000e+6 m²
- Common uses
- Land records, floor area, geometry and engineering sections
Definition of the square kilometer
Square Kilometer is an area unit used to describe surface size, land coverage or geometric sections.
Measurement system and SI relationship
Metric, imperial and land-measurement area usage
SI equivalent: 1 km² = 1.000000e+6 m²
History of the square kilometer
The prefix kilo- (one thousand, from Greek chilioi) was part of the original French metric system of 1795; the square kilometer is the usual unit for the area of cities, regions and countries.
Where is the square kilometer used?
Land records, floor area, geometry and engineering sections