km²

What is a Square Kilometer?

Square Kilometer is an area unit used to describe surface size, land coverage or geometric sections.

Square Kilometer is an area unit used to describe surface size, land coverage or geometric sections.

Square Kilometer became established as a practical area unit in technical, commercial or scientific use.

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

Square Kilometer became established as a practical area unit in technical, commercial or scientific use.

Where is the square kilometer used?

Land records, floor area, geometry and engineering sections

Square Kilometer conversion tools

Other languages

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