Square Inches to Square Centimeters

    Convert square inches to square centimeters for product specs, labels, drawings, crafts, small surface areas, and metric documentation.

    From
    To
    1 in² = 6.4516 cm²1 cm² = 0.155 in²
    1 in² in other units
    mm²
    645.16
    0.000645
    ha
    6.4516e-8
    km²
    6.4516e-10
    sotka
    6.4516e-6
    ac
    1.5942e-7

    How to convert in² to cm²

    To convert a value from square inches (in²) to square centimeters (cm²), enter the number in the converter above. Use the swap control if you need the reverse direction.

    x is the source value in in²; y is the result in cm².

    Conversion factor
    Direct factor: 6.4516 cm² for 1 in². Reverse factor: 0.155 in² for 1 cm².

    Popular conversions

    Quick answers for common in² to cm² values are available from the related conversion pages.

    Use the related tools section for fixed-value conversions and the reverse direction.

    Common conversion table

    Quick reference table for common in² to cm² values:

    in²cm²
    16.4516
    532.258
    1064.516
    50322.58
    100645.16
    1,0006,451.6

    About square inches

    Square inch (in²) — One square inch is the area of a square one inch on each side. It equals exactly 6.4516 square centimeters.

    Common uses: Square inches are used for small surface areas, product specs, labels, patterns, crafts, and engineering drawings.

    About square centimeters

    Square centimeter (cm²) — One square centimeter is the area of a square one centimeter on each side. It equals 0.0001 square meters.

    Common uses: Square centimeters are used for product labels, small surface areas, drawings, crafts, medical references, and engineering dimensions.

    Frequently Asked Questions

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