How to convert square centimeters to square inches
Formula: in² = cm² × 0.155
Worked example: 100 cm² → 100 × 0.155 = 15.5 in²
Square centimeters to square inches conversion chart
| Square centimeters (cm²) | Square inches (in²) |
|---|---|
| 1 cm² | 0.155 in² |
| 2 cm² | 0.310001 in² |
| 3 cm² | 0.465001 in² |
| 4 cm² | 0.620001 in² |
| 5 cm² | 0.775002 in² |
| 6 cm² | 0.930002 in² |
| 7 cm² | 1.085 in² |
| 8 cm² | 1.24 in² |
| 9 cm² | 1.395 in² |
| 10 cm² | 1.55 in² |
| 12 cm² | 1.86 in² |
| 15 cm² | 2.325 in² |
| 20 cm² | 3.10001 in² |
| 25 cm² | 3.87501 in² |
| 30 cm² | 4.65001 in² |
| 40 cm² | 6.20001 in² |
| 50 cm² | 7.75002 in² |
| 75 cm² | 11.625 in² |
| 100 cm² | 15.5 in² |
| 250 cm² | 38.7501 in² |
| 500 cm² | 77.5002 in² |
| 1,000 cm² | 155 in² |
What is a square centimeter?
The square centimeter is the area of a square 1 cm on each side, one ten-thousandth of a square meter. It is used for small surfaces such as labels, photos, skin patches and the cross-section of beams. One square inch is exactly 6.4516 cm².
What is a square inch?
The square inch is the area of a square one inch on each side, exactly 6.4516 cm². It shows up in tile and screen areas, printing and in pressure units such as pounds per square inch (psi).