Square Kilometers (km2) - Area Conversions
A square kilometer is a unit of area in the Metric System. The symbol for square kilometer is km2. A square kilometer is calculated as the area of a square that has 1 kilometer on each side. The International spelling for this unit is square kilometre.
Select a Conversion
Select one of the square kilometer conversions below:
- Square Kilometer to Acre (km2 to ac)
- Square Kilometer to Hectare (km2 to ha)
- Square Kilometer to Square Centimeter (km2 to cm2)
- Square Kilometer to Square Decameter (km2 to dam2)
- Square Kilometer to Square Decimeter (km2 to dm2)
- Square Kilometer to Square Feet (km2 to ft2)
- Square Kilometer to Square Hectometer (km2 to hm2)
- Square Kilometer to Square Inch (km2 to in2)
- Square Kilometer to Square Meter (km2 to m2)
- Square Kilometer to Square Mile (km2 to mi2)
- Square Kilometer to Square Millimeter (km2 to mm2)
- Square Kilometer to Square Yard (km2 to yd2)
Unit Summary
This table provides a summary of the Area units within their respective measurement systems.
| Unit | Symbol | Measurement System |
|---|---|---|
| square inches | in2 or sq in | US Customary Units/Imperial System |
| square feet | ft2 or sq ft | US Customary Units/Imperial System |
| square yards | yd2 or sq yd | US Customary Units/Imperial System |
| acres | ac | US Customary Units/Imperial System |
| square miles | mi2 or sq mi | US Customary Units/Imperial System |
| square millimeters | mm2 | Metric System |
| square centimeters | cm2 | Metric System |
| square decimeters | dm2 | Metric System |
| square meters | m2 | Metric System |
| square decameters | dam2 | Metric System |
| square hectometers | hm2 | Metric System |
| hectares | ha | Metric System |
| square kilometers | km2 | Metric System |
Note: For area conversions, US Customary Units and the Imperial System are equivalent.
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