About this tool
This inches to cm converter (cm to inches calculator, feet to meters, miles to km length converter) turns a length in any unit into all the others at once.
Every result goes through metres using exact definitions: 1 inch = 2.54 cm, 1 foot = 12 inches = 30.48 cm, 1 yard = 3 feet = 0.9144 m and 1 mile = 1.609344 km.
For example, 170 cm divided by 2.54 is 66.93 inches, which is 5 ft 6.9 in. A 6 ft person is 182.88 cm tall, and 100 miles is 160.93 km. How many cm is one inch? Exactly 2.54. How do I change cm to feet and inches?
Divide by 2.54 for inches, then divide by 12 for whole feet and keep the remainder as inches, which the highlighted box does for you. Can I convert the other way?
Yes, choose inch, foot or mile as the starting unit, or press a quick button such as in to cm. Results are rounded to six decimals, so very long distances may differ slightly from a map.
Screen sizes and clothing labels are often rounded by the maker, and tape measures can be off by a millimetre, so use the result as a guide.
For weight, temperature and shoe sizes, see the unit converter; for percentages of a length, use the percent calculator.
How to use
- Type the length you want to convert.
- Pick the unit you start from, or tap a quick button such as cm to in or in to cm.
- Read the value in every other unit, including feet and inches, and copy or share it.