1 square inch to square centimeters
1 in² = 6.4516 cm². Change the amount below, or read the formula and the reference table further down.
1 square inch equals
square centimeters
1 in² = 6.4516 cm²
The formula
Square inches and square centimeters both measure area from the same zero, so a single multiplier does the job.
cm² = in² × 6.4516
Going the other way? Convert square centimeters to square inches.
Square inches to square centimeters table
Values either side of 1 in².
| Square inches (in²) | Square centimeters (cm²) |
|---|---|
| -4 | -25.8064 |
| -3.5 | -22.5806 |
| -3 | -19.3548 |
| -2.5 | -16.129 |
| -2 | -12.9032 |
| -1.5 | -9.6774 |
| -1 | -6.4516 |
| -0.5 | -3.2258 |
| 0 | 0 |
| 0.5 | 3.2258 |
| 1 | 6.4516 |
| 1.5 | 9.6774 |
| 2 | 12.9032 |
| 2.5 | 16.129 |
| 3 | 19.3548 |
| 3.5 | 22.5806 |
| 4 | 25.8064 |
| 4.5 | 29.0322 |
| 5 | 32.258 |
| 5.5 | 35.4838 |
| 6 | 38.7096 |
Questions people ask
- How many square centimeters are in a square inch?
- One square inch equals 6.4516 square centimeters.
- How do I convert square inches to square centimeters by hand?
- Multiply the number of square inches by 6.4516. For a rough check, 6.5 is close enough for most everyday use.
- What is 1 square inch in square centimeters?
- 1 square inch is 6.4516 square centimeters.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.