The square centimeter (cm²) is commonly used for small everyday objects. A standard postage stamp measures about 4 cm², while a smartphone screen ranges from 80-120 cm². This unit is particularly useful in medical imaging (tumor sizes) and school science projects. The square kilometer (km²) measures large territories and geographic areas. Central Park in New York covers 3.41 km², while Paris occupies about 105 km². This unit is essential for urban planning, environmental studies, and country-size comparisons.
To convert between Square Centimeter (cm²) and Square Kilometer (km²), use the following formulas:
1 Square Centimeter (cm²) = 1e-10 Square Kilometer (km²)
1 Square Kilometer (km²) = 10000000000 Square Centimeter (cm²)
1 cm² = 1 * 1e-10 km² = 1e-10 km²
10 cm² = 10 * 1e-10 km² = 1e-9 km²
50 cm² = 50 * 1e-10 km² = 5e-9 km²
100 cm² = 100 * 1e-10 km² = 1e-8 km²
500 cm² = 500 * 1e-10 km² = 5.0000000000000004e-8 km²
1000 cm² = 1000 * 1e-10 km² = 1.0000000000000001e-7 km²
| Square Centimeter (cm²) | Square Kilometer (km²) |
|---|---|
| 1 cm² | 1e-10 km² |
| 10 cm² | 1e-9 km² |
| 100 cm² | 1e-8 km² |
| 500 cm² | 5.0000000000000004e-8 km² |
| 1000 cm² | 1.0000000000000001e-7 km² |