Square inches to Square centimeters converter

To convert square inches to square centimeters, enter the value in the first field. The result in square centimeters is calculated automatically using the exact conversion factor.

1 in² = 6.4516 cm²
1 cm² ≈ 0.155000310001 in²

Formula: cm² = in² × 6.4516
in² ≈ cm² × 0.155000310001

Definitions: 1 in² = 0.00064516 m²; 1 cm² = 0.0001 m²

The square inch (in²) is the area of a square 1 inch on each side. It is used in the United States for small surfaces and in engineering, where pressure in psi means pounds-force per square inch.

The square centimeter (cm²) is the area of a square 1 cm on each side. It is used for small surfaces such as tiles, screens and printed items, and in medicine for the size of wounds and skin lesions.

See the conversion table with commonly used values, handy for quick reference or study.