Convert Square centimeters to square kilometers

1 square centimeter = 1.000000e-10 square kilometers · km² = cm² ÷ 10,000,000,000

cm²
Square kilometers
1.000000e-10km²

1 square centimeter = 1.000000e-10 square kilometers

When you need this conversion

This conversion goes from square centimeters, used for small surface areas and material samples, to square kilometers, used for cities, parks, and regions. Both measure the same physical quantity, so the conversion is exact — the difference is which unit your source, tool, or region happens to use.

Square centimeters to square kilometers conversion table

Conversion table from square centimeters to square kilometers
Square centimeters (cm²)Square kilometers (km²)
1 cm²1.000000e-10 km²
2 cm²2.000000e-10 km²
3 cm²3.000000e-10 km²
5 cm²5.000000e-10 km²
10 cm²0.000000001 km²
15 cm²0.000000001 km²
20 cm²0.000000002 km²
25 cm²0.000000003 km²
50 cm²0.000000005 km²
75 cm²0.000000008 km²
100 cm²0.00000001 km²
250 cm²0.000000025 km²
500 cm²0.00000005 km²
1,000 cm²0.0000001 km²

The formula

km² = cm² ÷ 10,000,000,000

Because both units measure area, the conversion is a single multiplication by a fixed factor. That factor never changes, so the result is exact.

Convert the other way

Square kilometers to square centimeters →

Related area conversions

All area conversions →

Frequently asked questions

How many square kilometers are in a square centimeter?
There are 1.000000e-10 square kilometers in 1 square centimeter. The formula is km² = cm² ÷ 10,000,000,000.
How do you convert square centimeters to square kilometers?
Use the formula km² = cm² ÷ 10,000,000,000. For example, 10 square centimeters equals 0.000000001 square kilometers.
Is the square centimeters to square kilometers conversion exact?
Yes. Square centimeters and square kilometers are both units of area, related by an exact defined factor. Displayed results are rounded for readability.
What is cm² short for?
cm² is the standard symbol for square centimeter. km² is the symbol for square kilometer.