Square centimeter to Square inch Converter
1 square centimeter is about 0.15500031 square inches. Convert square centimeters (cm²) to square inches (in²) below: type a value and the result updates as you type.
cm² to in² calculator
Result
Square centimeter to Square inch conversion
1 cm² ≈ 0.15500031 in²one square centimeter in square inches
1 in² = 6.4516 cm²one square inch in square centimeters
Square centimeter (cm²): A square one centimeter on each side.
Square inch (in²): A square one inch on each side.
Source:Square centimeter: SI Brochure, 9th edition (BIPM, 2019); Square inch: International yard and pound agreement (1959)
How to convert square centimeters to square inches
To convert square centimeters to square inches, divide the number of square centimeters by 6.4516.
Formula
in² = cm² ÷ 6.4516
Examples
- 5 cm² = 5 ÷ 6.4516 ≈ 0.77500155 in²
- 25 cm² = 25 ÷ 6.4516 ≈ 3.87500775 in²
- 100 cm² = 100 ÷ 6.4516 ≈ 15.500031 in²
Square centimeter to Square inch conversion table
| Square centimeter (cm²) | Square inch (in²) |
|---|---|
| 0.1 cm² | 0.015500031 in² |
| 0.5 cm² | 0.077500155 in² |
| 1 cm² | 0.15500031 in² |
| 2 cm² | 0.31000062 in² |
| 3 cm² | 0.46500093 in² |
| 5 cm² | 0.77500155 in² |
| 10 cm² | 1.5500031 in² |
| 20 cm² | 3.1000062 in² |
| 25 cm² | 3.87500775 in² |
| 50 cm² | 7.7500155 in² |
| 100 cm² | 15.500031 in² |
| 250 cm² | 38.7500775 in² |
| 500 cm² | 77.500155 in² |
| 1000 cm² | 155.00031 in² |
Values rounded to 10 significant digits where needed.
Frequently asked questions
- How many square inches are in one square centimeter?
- One square centimeter is about 0.15500031 square inches.
- How do I convert square inches to square centimeters?
- To convert square inches to square centimeters, multiply the number of square inches by 6.4516. The formula is cm² = in² × 6.4516.
- Is this conversion exact?
- Yes. Both units have exact definitions and the factor 6.4516 is exact. Displayed results are only rounded when they have many decimal places.
- Which is larger, a square centimeter or a square inch?
- A square inch is 6.4516 times larger than a square centimeter. In other words, a square centimeter is about 0.15500031 of a square inch.