Square Centimeter (cm²)
The square centimetre (cm²) is the area of a square with 1 cm sides, 10⁻⁴ m².
Symbol: cm² (ASCII: cm2)
Quantity: area
SI relation: 1 cm² = 0.0001 m² (exact)
Derivation: 1 cm² = (0.01 m)² = 10⁻⁴ m²
Exact: yes, by definition
Typical uses
- Test areas in air-permeability testing (ISO 9237: 5, 10, 20, 50, 100 cm²; ASTM D737: 38.3 cm²)
- Membrane and filter coupon areas
- Cross-sections of small parts and samples
Convert square centimeters to other units
| Conversion | 1 cm² equals | Reverse |
|---|---|---|
| square centimeter to square meter | 0.0001 m² | square meter to square centimeter |
| square centimeter to square foot | 0.001076391042 ft² | square foot to square centimeter |
| square centimeter to square inch | 0.15500031 in² | square inch to square centimeter |
| square centimeter to square millimeter | 100 mm² | square millimeter to square centimeter |
Open the Area Converter to convert any value between all units.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 2 with SI prefix centi.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Square Centimeter (cm²). Retrieved October 17, 2026, from https://scientificconverters.com/units/square-centimeter/
IEEE
Scientific Converters, "Square Centimeter (cm²)," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/units/square-centimeter/