cm to inches: Convert centimeters to inches

Answer
0.393701 in = 1 cm

1 cm = 0.393701 in. To convert centimeters to inches, multiply by 0.3937007874. To go back, multiply by 2.54 (or divide by 0.3937007874). Centimeters are used for body height, clothing and furniture in metric countries.

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Converted length
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How we calculated this

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    Formula

    in = cm × 0.3937007874 cm = in × 2.54 30 cm × 0.3937007874 = 11.811 in

    cm to inches table

    cmin
    1 cm0.393701 in
    2 cm0.787402 in
    3 cm1.1811 in
    4 cm1.5748 in
    5 cm1.9685 in
    6 cm2.3622 in
    7 cm2.75591 in
    8 cm3.14961 in
    9 cm3.54331 in
    10 cm3.93701 in
    12 cm4.72441 in
    15 cm5.90551 in
    20 cm7.87402 in
    25 cm9.84252 in
    30 cm11.811 in
    40 cm15.748 in
    50 cm19.685 in
    60 cm23.622 in
    70 cm27.5591 in
    80 cm31.4961 in
    90 cm35.4331 in
    100 cm39.3701 in
    150 cm59.0551 in
    170 cm66.9291 in
    180 cm70.8661 in

    Factors from NIST SP 811 and the BIPM SI Brochure; values rounded to 6 significant digits. Reverse: Inches to cm.

    Frequently asked questions

    How many inches is 30 cm?

    30 cm = 11.811 in.

    How many cm is 1 in?

    1 in = 2.54 cm.

    Open the full calculator: Length Converter: mm to Inches (with Fractions), Feet and Miles →