Convert square centimeters to square inches
1 cm² = 0.15500031 in². Change the amount below, or read the formula and the reference table further down.
1 square centimeter equals
square inches
1 cm² = 0.15500031 in²
The formula
Square centimeters and square inches both measure area from the same zero, so a single multiplier does the job.
in² = cm² × 0.15500031
Going the other way? Convert square inches to square centimeters.
Square centimeters to square inches table
Common values, rounded for reading.
| Square centimeters (cm²) | Square inches (in²) |
|---|---|
| 1 | 0.155 |
| 2 | 0.310001 |
| 3 | 0.465001 |
| 4 | 0.620001 |
| 5 | 0.775002 |
| 6 | 0.930002 |
| 7 | 1.085 |
| 8 | 1.24 |
| 9 | 1.395 |
| 10 | 1.55 |
| 15 | 2.325 |
| 20 | 3.1 |
| 25 | 3.875 |
| 30 | 4.65 |
| 40 | 6.2 |
| 50 | 7.75 |
| 75 | 11.625 |
| 100 | 15.5 |
| 250 | 38.7501 |
| 500 | 77.5002 |
| 1,000 | 155 |
Questions people ask
- How many square inches are in a square centimeter?
- One square centimeter equals 0.15500031 square inches.
- How do I convert square centimeters to square inches by hand?
- Multiply the number of square centimeters by 0.15500031. For a rough check, 0.155 is close enough for most everyday use.
- What is 1 square centimeter in square inches?
- 1 square centimeter is 0.15500031 square inches.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.