Table Of Contents
Square kilometers to square centimeter Conversion
1 square kilometers (km²) is equal to 10000000000 square centimeter (cm²).
1 km² = 10000000000 cm²
or
1 cm² = 0.0000000001 km²
Formula
To convert a area from square kilometers (km²) to square centimeter (cm²), multiply the area in square kilometers by 10000000000
a(cm²) = a(km²) × 10000000000
Examples:
Convert 100 square kilometers to square centimeter:
a(cm²) = 100km² × 10000000000 = 1000000000000 cm²
Conversion table
| 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 |
| 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 |
Frequently asked questions
How do I convert square kilometers to square centimeter?
Multiply the value in square kilometers by 10000000000 to get the result in square centimeter. For example, 5 km² × 10000000000 = 5e10 cm².
How many square centimeter are in 1 square kilometers?
1 square kilometers (km²) is equal to 1e10 square centimeter (cm²).
How do I convert square centimeter back to square kilometers?
Use the inverse operation: divide the value in square centimeter by 10000000000 to get the result in square kilometers.
How accurate is the square kilometers to square centimeter 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
