CM to Inches Converter
Convert the other wayInches to CMConvert centimeters to inches instantly. Enter a measurement in centimeters to see the equivalent value in inches.
How it works
One inch is defined as exactly 2.54 centimeters under the international yard and pound agreement. To convert centimeters to inches, divide the centimeter value by 2.54.
Formula
inches = centimeters ÷ 2.54
Worked examples
- 100 cm → 39.3701 in
- 1 cm → 0.3937 in
Useful notes
- 1 inch = exactly 2.54 cm (this is an exact, defined conversion, not an approximation).
FAQ
- How many inches are in 1 cm?
- 1 centimeter equals approximately 0.3937 inches (1 ÷ 2.54).
- Is 2.54 cm exactly one inch?
- Yes. The inch is internationally defined as exactly 2.54 centimeters, so this conversion is exact, not rounded.
- How do I convert cm to inches manually?
- Divide the number of centimeters by 2.54 to get inches.
Related tools
See all Conversions tools.