Square centimetres to Square kilometres Converter
Convert square centimetres (cm²) to square kilometres (km²) instantly. Area conversions are everyday maths in Singapore property: HDB flats are listed in square metres while condo listings and PSF prices use square feet.
Result
- Square kilometres
- 1.000000e-10 km²
How to use the square centimetres to square kilometres converter
- Enter the square centimetres (cm²).
- The results update as you type, or press Calculate.
- Read the square kilometres first, then the supporting figures below it.
Formula
Square kilometres = square centimetres × 1.000000e-10
Worked example
For example, with these inputs:
- Square centimetres (cm²): 1
the calculator returns:
- Square kilometres: 1.000000e-10 km²
Square centimetres to Square kilometres table
| Square centimetres | Square kilometres |
|---|---|
| 1 cm² | 1.000000e-10 km² |
| 2 cm² | 2.000000e-10 km² |
| 5 cm² | 5.000000e-10 km² |
| 10 cm² | 1.000000e-9 km² |
| 20 cm² | 2.000000e-9 km² |
| 25 cm² | 2.500000e-9 km² |
| 50 cm² | 5.000000e-9 km² |
| 100 cm² | 1.000000e-8 km² |
| 250 cm² | 2.500000e-8 km² |
| 500 cm² | 5.000000e-8 km² |
| 1,000 cm² | 1.000000e-7 km² |
About this conversion
Area conversions are everyday maths in Singapore property: HDB flats are listed in square metres while condo listings and PSF prices use square feet.
For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.
A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.
Frequently asked questions
How many square kilometres are in one square centimetre?
1 cm² = 1.000000e-10 km².
How do I convert cm² to km²?
Square kilometres = square centimetres × 1.000000e-10.