square centimetre → square inch
1 square centimetre = 0.155 square inches; 1 square inch = 6.4516 square centimetres.
square centimetre to square inch
1 cm² = 0.155 in²
square centimetre → square inch conversion table
| square centimetre (cm²) | square inch (in²) |
|---|---|
| 1 | 0.155 |
| 2 | 0.31 |
| 3 | 0.465 |
| 5 | 0.775 |
| 8 | 1.24 |
| 10 | 1.55 |
| 15 | 2.325 |
| 20 | 3.1 |
| 25 | 3.875 |
| 30 | 4.65 |
| 40 | 6.2 |
| 50 | 7.75 |
| 60 | 9.3 |
| 80 | 12.4 |
| 100 | 15.5 |
Formula and notes
1 square centimetre = 0.155 square inches; conversely, 1 square inch = 6.4516 square centimetres.
The converter uses the base unit method: square centimetre has a factor of 0.0001 and square inch has a factor of 0.00064516, so the target value = source value × (0.0001 ÷ 0.00064516).
Length and area converters use exact international definitions, so results are consistent across calculators.
Other area conversions
square centimetre to square inch FAQ
How do I convert square inch to square centimetre?
Multiply the value in square inch by 6.4516 to get square centimetre.
Is the conversion exact?
Yes. Every unit is defined by a fixed factor relative to the base unit, so the result is exact apart from rounding.