Square kilometer Converter
Created by: tinycalcs.com/en
Number of supported units: 17
Last update: 2026
The Square kilometer Converter supports 17 different area units. This makes it possible to convert freely between square kilometers [km²], American, British, metric, and other area units. All area units are converted in real time and displayed with up to 20 decimal places, ensuring sufficient accuracy.
Conversion of square kilometers
To convert square kilometers [km²] into another unit of area, a conversion value is required. This value can be determined using a conversion table. However, the table is relatively large, confusing, and difficult for inexperienced users to understand. The following tool provides a solution to this problem by allowing the rounded conversion values for square kilometers [km²] to be queried directly from the conversion table.
Determine conversion factor
Conversion between square kilometers and square millimeters
A quick and precise conversion between square kilometers [km²] and square millimeters [mm²] is straightforward and requires only multiplication or division by 1012. The conversion from square kilometers [km²] to square millimeters [mm²] is done by multiplying the value in square kilometers [km²] by 1012. To reverse the conversion, divide the value in square millimeters [mm²] by 1012 to obtain square kilometers [km²].
- Square millimeters [mm²] = square kilometers [km²] * 1012
- Square kilometers [km²] = square millimeters [mm²] ÷ 1012
Conversion between square kilometers and square centimeters
Conversions between square kilometers [km²] and square centimeters [cm²] are straightforward and can be performed with simple math. The required conversion factor is 1010. To convert a value from square kilometers [km²] to square centimeters [cm²], multiply the number of square kilometers [km²] by 1010. For values in square centimeters [cm²], divide by 1010 to get the equivalent in square kilometers [km²].
- Square centimeters [cm²] = square kilometers [km²] * 1010
- Square kilometers [km²] = square centimeters [cm²] ÷ 1010
Conversion between square kilometers and square decimeters
The conversion between square kilometers [km²] and square decimeters [dm²] is quick to perform and requires only basic mathematical operations an the conversion factor 100,000,000. Multiply the number of square kilometers [km²] by 100,000,000 to get the converted value in square decimeters [dm²]. To convert a value in square decimeters [dm²] back to square kilometers [km²], simply divide the amount of square decimeters [dm²] by 100,000,000.
- Square decimeters [dm²] = square kilometers [km²] * 100,000,000
- Square kilometers [km²] = square decimeters [dm²] ÷ 100,000,000
Conversion between square kilometers and square meters
Square kilometers [km²] and square meters [m²] can be converted quickly and accurately with just a simple multiplication or division using the conversion factor 1,000,000. Converting square kilometers [km²] to square meters [m²] is performed by multiplying the number of square kilometers [km²] by 1,000,000. To convert a value from square meters [m²] to square kilometers [km²], divide the number of square meters [m²] by 1,000,000.
- Square meters [m²] = square kilometers [km²] * 1,000,000
- Square kilometers [km²] = square meters [m²] ÷ 1,000,000
Conversion between square kilometers and square inches
You can easily convert between square kilometers [km²] and square inches [in²] using the formulas provided below. For accurate results, it is important to follow the correct order of mathematical operations.
- Square inches [in²] = square kilometers [km²] ÷ 6.4516 * 1010
- Square kilometers [km²] = square inches [in²] * 6.4516 ÷ 1010
Square kilometer
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Metric units
American / British
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Square micrometers
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