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Conversion Formula:
Convert Square Inch to Square Centimeter (in² to cm²) instantly with accurate, readable results.
Convert between square meters, acres, square feet, hectares, and other common units with our Area Unit Converter. This intuitive unit conversion tool helps you calculate land size, floor space, and surface area across both metric and imperial systems. Whether you're working on real estate, construction, or geography tasks, our area unit conversion calculator ensures precise and instant results.
Square inch (in²) - Imperial/US area unit
Square inch is an Imperial/US customary unit of area equal to a square 1 inch on a side. Used for small surface areas in manufacturing, displays, and hardware specs.
- Symbol: in²
- System: Imperial/US customary
- Exact relations: 1 in² = (2.54 cm)² = 6.4516 cm² = 0.00064516 m² = 645.16 mm²
- Other relations: 1 in² = 1/144 ft² ≈ 0.006944444 ft² ≈ 0.000771605 yd²
- Typical examples: screen area, gasket/washer footprints, cross-sectional areas in inch–pound drawings
Square centimeter (cm²) - small metric area
Square centimeter is a metric unit of area equal to the area of a square with sides of 1 centimeter. Used for labeling, small component footprints, and cross-sections in science and engineering.
- Symbol: cm²
- System: SI derived unit
- Exact relations: 1 cm² = (0.01 m)² = 0.0001 m² = 100 mm²; 1 m² = 10,000 cm²
- Imperial/US equivalents: 1 cm² ≈ 0.15500031 in² ≈ 0.001076391 ft²
- Typical examples: postage stamp area (~4–6 cm²); PCB pad areas; small sensor cross-sections