Table Of Contents
Square centimeter to square kilometers Conversion
1 square centimeter (cm²) is equal to 0.0000000001 square kilometers (km²).
1 cm² = 0.0000000001 km²
or
1 km² = 10000000000 cm²
Formula
To convert a area from square centimeter (cm²) to square kilometers (km²), divide the area in square centimeter by 10000000000
a(km²) = a(cm²) / 10000000000
Examples:
Convert 10 square centimeter to square kilometers:
a(km²) = 10cm² / 10000000000 = 0.000000001 km²
Conversion table
| Square centimeter (cm²) | Square kilometers (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 |
| 25 cm² | 2.5e-9 km² |
| 50 cm² | 5e-9 km² |
| 100 cm² | 1e-8 km² |
| 250 cm² | 2.5e-8 km² |
| 500 cm² | 5e-8 km² |
| 1000 cm² | 1e-7 km² |
| Square kilometers (km²) | Square centimeter (cm²) |
|---|---|
| 1 km² | 1e10 cm² |
| 2 km² | 2e10 cm² |
| 3 km² | 3e10 cm² |
| 5 km² | 5e10 cm² |
| 10 km² | 1e11 cm² |
| 20 km² | 2e11 cm² |
| 25 km² | 2.5e11 cm² |
| 50 km² | 5e11 cm² |
| 100 km² | 1e12 cm² |
| 250 km² | 2.5e12 cm² |
| 500 km² | 5e12 cm² |
| 1000 km² | 1e13 cm² |
Frequently asked questions
How do I convert square centimeter to square kilometers?
Divide the value in square centimeter by 10000000000 to get the result in square kilometers. For example, 5 cm² ÷ 10000000000 = 5e-10 km².
How many square kilometers are in 1 square centimeter?
1 square centimeter (cm²) is equal to 1e-10 square kilometers (km²).
How do I convert square kilometers back to square centimeter?
Use the inverse operation: multiply the value in square kilometers by 10000000000 to get the result in square centimeter.
How accurate is the square centimeter to square kilometers conversion?
The converter multiplies by the conversion factor 10000000000 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.
Sources
Conversion factors are based on internationally recognised standards:
- BIPM — The International System of Units (SI Brochure, 9th edition)
- NIST Handbook 44, Appendix C — General Tables of Units of Measurement (current edition)
- U.S. Survey Foot: Revised Unit Conversion Factors
- NIST Guide to the SI (SP 811), Appendix B.9: Factors for units listed by kind of quantity or field of science
