Inch to Centimeter

Convert inch to centimeter with the exact factor, a quick reference table and three worked examples. Everything runs in your browser.

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FromInch (in)
ToCentimeter (cm)
2.54cm
cm = in × 2.54

Conversion formula

cm = in × 2.54

The conversion factor is 2.54; multiply directly.

Common conversions

Inch (in) Centimeter (cm)
1 2.54
2 5.08
5 12.7
10 25.4
20 50.8
50 127
100 254

Worked examples

1

1 in = 2.54 cm

2

10 in = 25.4 cm

3

100 in = 254 cm

Frequently asked questions

How many centimeter are in one inch?
One inch equals 2.54 centimeter. Use cm = in × 2.54 for any value.
What is the conversion formula?
The formula is cm = in × 2.54. Here in is the input unit and cm is the output unit.
Is the result rounded?
The calculation uses the standard factor 2.54. Displayed values keep up to six significant digits.

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