How to convert cm to inches
The formula for converting centimeters to inches is:
Inches = cm ÷ 2.54
To convert cm to inches, divide your cm figure by 2.54 or multiply it by 0.3937.
There are 2.54 cm in 1 inch.
There are 2.54 cm in 1 inch.
cm & inches
inches to cm
feet to inches
feet/inch to feet
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Convert quickly and easily between centimeters (cm) and inches (in) using our conversion tool. Our converter gives the option to see results in fractions of an inch. You can also use our reference chart of common conversions. Here's what else is on this page...
On this page:
Example conversion
Example: Mabel has a step length of 60cm and wants to convert it into inches. She calculates as follows:
Inches = 60 ÷ 2.54
Mabel's step length measures 23.6".
Note that if you want to include feet within your calculation, you can convert cm to feet and inches here.
Cm to inches chart
| Cm to inches | Cm to inches |
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Note that conversions in the above charts are rounded to a maximum of 4 decimal places. We have individual pages for CM to feet and inches to feet.
How many inches are in 30 cm?
30 cm is equal to 11.811 inches. You can calculate this by dividing 30 by 2.54, as there are 2.54 cm in an inch.
How many inches are in 40 cm?
40 cm is equal to 15.748 inches.
This calculation can be achieved by dividing the 40 cm figure by 2.54, or multiplying it by 0.3937.
Metric and imperial units
The Centimeter (British spelling 'centimetre') is a metric unit of length, distance or height. By contrast, the inch is an imperial measurement, still commonly used in the United States and United Kingdom.