# Square kilometer conversions

area conversions » square kilometer conversionsThe square kilometer conversion selector on this page selects the area/surface measurement unit to convert to starting from square kilometers (sq km). To make a conversion starting from a unit of area other than square kilometer, simply click on the "Reset" button.

## What is square kilometer?

The **square kilometre** (or **square kilometer**) is a unit of area in the metric system equal to 1,000,000
square meters (1 km2 = 1,000,000 m2), the standard derived unit of area in the
International System of Units (SI). It is also equal to 100 hectares (ha) (a unit of area in the metric system), or 10,000 square decameters
(dam2) or 100 square hectometers (hm2) (units of area in the SI), or 247.105381 acres (ac),
or 1.07639104x107 square feet (sq ft), or 1.19599005x106 square yards (sq yd) or
0.386102159 square miles (sq mi), which are Imperial / US customary units of area.

The square kilometer (km2) is an SI derived unit of area. The kilometer (km) is a unit of length in the SI. An area of 1.0 square kilometer is the area of a square that is 1.0 kilometer on each side.

*Symbol:*

sq km

*Plural:*

square kilometers

*aka:*

square kilometer (plural: square kilometers, US spelling)

## Square kilometer conversions: quick access

A list with conversions from square kilometers to other (metric, imperial, or customary) area and surface measurement units is displayed below.

- square kilometer to acre (sq km to ac)
- square kilometer to acre (US survey) (sq km to ac)
- square kilometer to are (sq km to a)
- square kilometer to carreau
- square kilometer to centiare (sq km to ca)
- square kilometer to circular inch (sq km to circ in)
- square kilometer to circular mil (sq km to cmil)
- square kilometer to decare (sq km to daa)
- square kilometer to dunam
- square kilometer to hectare (sq km to ha)
- square kilometer to mu
- square kilometer to ping
- square kilometer to pyong
- square kilometer to rood (sq km to ro)
- square kilometer to section
- square kilometer to square centimeter (sq km to sq cm)
- square kilometer to square chain (sq km to sq ch)
- square kilometer to square decameter (sq km to sq dam)
- square kilometer to square decimeter (sq km to sq dm)
- square kilometer to square foot (sq km to sq ft)
- square kilometer to square hectometer (sq km to sq hm)
- square kilometer to square inch (sq km to sq in)
- square kilometer to square meter (sq km to sq m)
- square kilometer to square micrometer (sq km to sq μm)
- square kilometer to square mil (sq km to sq mil)
- square kilometer to square mile (sq km to sq mi)
- square kilometer to square millimeter (sq km to sq mm)
- square kilometer to square nanometer (sq km to sq nm)
- square kilometer to square yard (sq km to sq yd)
- square kilometer to stremma