Convert centimetre to inch
1 centimetre = 0.3937008 inches. Enter any value below for an exact conversion.
1 cm =
0.3937008 in
inches
Need the reverse? Convert inch to centimetre →
Formula
1 centimetre = 0.3937008 inches inch = centimetres × 0.3937008 centimetre = inches × 2.54
centimetre to inch conversion table
About converting centimetres to inches
Converting centimetres to inches is one of the most searched unit conversions, needed whenever a measurement given in the metric system has to be read in the imperial units still used in the US. Common cases include screen and TV sizes, clothing and shoe measurements, paper sizes, and furniture dimensions from international retailers.
Method & sources
Conversions use exact legal definitions rather than rounded approximations: 1 inch = 2.54 cm and 1 pound = 0.45359237 kg (fixed by the 1959 international yard and pound agreement), 1 mile = 1.609344 km, and 1 US liquid gallon = 3.785411784 litres. Temperatures convert with °F = °C × 9⁄5 + 32 and K = °C + 273.15. Results are rounded only for display.
- NIST Special Publication 811 — Guide for the Use of the SI
- NIST Handbook 44, Appendix C — General Tables of Units of Measurement
Page last updated: October 1, 2026
Frequently asked questions
How many inches are in a centimetre?
One centimetre equals 0.3937008 inches. So 10 centimetres is 3.937008 inches. Use the converter above for any value.
What is the formula to convert centimetres to inches?
1 centimetre = 0.3937008 inches inch = centimetres × 0.3937008 centimetre = inches × 2.54
Is the centimetre-to-inch conversion exact?
Yes. The conversion factor between centimetres and inches is defined exactly, so results are precise — only rounded for display.
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