Square centimeters to Square millimeters converter

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

1 cm² = 100 mm²
1 mm² = 0.01 cm²

Formula: mm² = cm² × 100
cm² = mm² × 0.01

Definitions: 1 cm² = 0.0001 m²; 1 mm² = 1 × 10^-6 m²

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.

The square millimeter (mm²) is the area of a square 1 mm on each side. It is used for the cross-section of electrical wires and cables and for small parts in engineering.

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