CM to Inches Converter

10 cm in inches: 3.93701 in
Feet and inches: 0 ft 3.9 in
Feet: 0.328084 ft
Millimetres: 100 mm
Metres: 0.1 m
Yards: 0.109361 yd
Kilometres: 0.0001 km
Miles: 0.0000621371 miles
Nautical miles: 0.0000539957 nautical miles

What it does

Convert a length from one unit to any other: centimetres to inches, feet and inches to centimetres, metres to feet, kilometres to miles and more. Enter the length, choose its unit, and every other unit is shown at once.

How to use it

Length: The length to convert. Choose its unit in the Units box: centimetres, inches, feet and inches, miles and more.

Common uses

Converting your height between centimetres and feet and inches.
Checking screen, clothing or furniture sizes given in inches.
Converting distances between kilometres and miles.
Working out areas from lengths. Try the Area Calculator

The formula

inches = centimetres ÷ 2.54centimetres = inches × 2.54feet = inches ÷ 12miles = kilometres ÷ 1.609344

Where:

1 inch: exactly 2.54 cm
1 foot: 12 inches, exactly 30.48 cm
1 mile: exactly 1.609344 km

These are exact definitions, agreed internationally in 1959. Results are shown to 6 significant figures.

Worked example

To convert 10 cm to inches, divide by 2.54:

10 ÷ 2.54 = 3.93701 in
In feet: 3.93701 in ÷ 12 = 0.328084 ft

Questions people ask

How many centimetres are in an inch?

Exactly 2.54. So 10 cm is about 3.94 inches and 1 inch is 2.54 cm.

How do I convert my height to feet and inches?

Divide your height in centimetres by 2.54 to get inches, then divide by 12: the whole number is feet and the remainder is inches. 175 cm is 68.9 inches, which is 5 ft 8.9 in. Choose cm in the Units box and read the Feet and inches result.

What's a nautical mile?

Exactly 1,852 metres, about 1.15 ordinary miles. It's used at sea and in aviation because it relates to the Earth's latitude.

Last checked 26 October 2026