Convert Square Centimeters (cm²) to Square Kilometers (km²)
Enter a value below to convert Square Centimeters (cm²) to Square Kilometers (km²).
Conversion:
1 Square Centimeters (cm²) = 1e-10 Square Kilometers (km²)
How to Convert Square Centimeters (cm²) to Square Kilometers (km²)
1 cm2 = 1e-10 km2
1 km2 = 10000000000 cm2
Example: convert 15 Square Centimeters (cm²) to Square Kilometers (km²):
25 cm2 = 2.5e-9 km2
Square Centimeters (cm²) to Square Kilometers (km²) Conversion Table
| Square Centimeters (cm²) | Square Kilometers (km²) |
|---|---|
| 0.01 cm2 | 1e-12 km2 |
| 0.1 cm2 | 1e-11 km2 |
| 1 cm2 | 1e-10 km2 |
| 2 cm2 | 2e-10 km2 |
| 3 cm2 | 3e-10 km2 |
| 5 cm2 | 5e-10 km2 |
| 10 cm2 | 1e-9 km2 |
| 20 cm2 | 2e-9 km2 |
| 50 cm2 | 5e-9 km2 |
| 100 cm2 | 1e-8 km2 |
| 1000 cm2 | 1e-7 km2 |
Square Centimeters (cm²)
Definition
A square centimeter (cm²) is a metric unit of area equal to the area of a square with sides of 1 centimeter. It equals 0.0001 square meters (10⁻⁴ m²).
History
Like other metric area units, the square centimeter was derived from the metric system formalized in France in 1795. It has been a standard unit in science and everyday life since the widespread adoption of the metric system.
Current use
Square centimeters are widely used in everyday measurements such as the area of paper, photos, screens, skin patches, and small objects in general. It is a common unit in medicine, biology, and education.
Square Kilometers (km²)
Definition
A square kilometer (km²) is a metric unit of area equal to 1,000,000 square meters or 100 hectares. It represents the area of a square with sides of 1 kilometer.
History
The square kilometer naturally followed the adoption of the metric system and the kilometer as a standard unit of distance. It became the standard large-scale area unit for geography, demographics, and national statistics.
Current use
Square kilometers are used worldwide to express the area of cities, regions, countries, lakes, and large geographic features. It is the standard unit in national census data and geopolitical comparisons.