Square centimetres to Square inches Converter
Convert square centimetres (cm²) to square inches (sq in) 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 inches
- 0.155 sq in
How to use the square centimetres to square inches converter
- Enter the square centimetres (cm²).
- The results update as you type, or press Calculate.
- Read the square inches first, then the supporting figures below it.
Formula
Square inches = square centimetres × 0.15500031
Worked example
For example, with these inputs:
- Square centimetres (cm²): 1
the calculator returns:
- Square inches: 0.155 sq in
Square centimetres to Square inches table
| Square centimetres | Square inches |
|---|---|
| 1 cm² | 0.155 sq in |
| 2 cm² | 0.310001 sq in |
| 5 cm² | 0.775002 sq in |
| 10 cm² | 1.55 sq in |
| 20 cm² | 3.1 sq in |
| 25 cm² | 3.875 sq in |
| 50 cm² | 7.75 sq in |
| 100 cm² | 15.5 sq in |
| 250 cm² | 38.7501 sq in |
| 500 cm² | 77.5002 sq in |
| 1,000 cm² | 155.0003 sq in |
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 inches are in one square centimetre?
1 cm² = 0.155 sq in.
How do I convert cm² to sq in?
Square inches = square centimetres × 0.15500031.