To convert square centimeters to square kilometers, multiply the value by 1 × 10⁻¹⁰. To go the other way, multiply square kilometers by 10,000,000,000 to get square centimeters.
| Square Centimeters (cm²) | Square Kilometers (km²) |
|---|---|
| 1 cm² | 1 × 10⁻¹⁰ km² |
| 2 cm² | 2 × 10⁻¹⁰ km² |
| 5 cm² | 5 × 10⁻¹⁰ km² |
| 10 cm² | 1 × 10⁻⁹ km² |
| 20 cm² | 2 × 10⁻⁹ km² |
| 50 cm² | 5 × 10⁻⁹ km² |
| 100 cm² | 1 × 10⁻⁸ km² |
| 500 cm² | 5 × 10⁻⁸ km² |
| 1,000 cm² | 1 × 10⁻⁷ km² |
25 cm² × 1 × 10⁻¹⁰ = 2.5 × 10⁻⁹ km²
Try this example →250 cm² × 1 × 10⁻¹⁰ = 2.5 × 10⁻⁸ km²
Try this example →Square centimeter (cm²). A square centimeter is the area of a square with 1 cm sides, widely used in schools and for small surfaces.
Square kilometer (km²). A square kilometer is one million square meters (100 hectares), used for countries, cities and lakes.
There are 1 × 10⁻¹⁰ square kilometers in one square centimeter.
Multiply the number of square centimeters by 1 × 10⁻¹⁰. For example, 10 square centimeters equal 1 × 10⁻⁹ square kilometers.
One square kilometer equals 10,000,000,000 square centimeters.