Convert between centimeters, inches, feet, meters, miles and more. Type in either box.
The same value in every unit
Unit
Value
How to convert length
Type the number you want to convert in the From box.
Choose its unit, for example centimeters.
Pick the unit you want in the To menu. The answer appears at once.
Use the swap button to flip the direction, or check the table to see every unit together.
Common length conversions
From
To
1 inch
2.54 cm
1 foot
30.48 cm
1 yard
0.9144 m
1 mile
1.609344 km
1 cm
0.3937 inches
1 meter
3.2808 feet
1 km
0.6214 miles
5 km run
3.11 miles
Marathon (42.195 km)
26.22 miles
Height conversion chart
Feet and inches
Centimeters
5 ft 0 in
152.4 cm
5 ft 4 in
162.6 cm
5 ft 6 in
167.6 cm
5 ft 8 in
172.7 cm
5 ft 10 in
177.8 cm
6 ft 0 in
182.9 cm
6 ft 2 in
188.0 cm
Easy ways to estimate
No calculator handy? A standard credit card is about 8.5 cm wide. The top joint of an adult thumb is roughly one inch. A big walking stride is close to one meter. For distances, remember that 8 km is very nearly 5 miles, so you can scale up from there.
Frequently asked questions
How many centimeters are in an inch?
Exactly 2.54. This has been the international definition since 1959.
How do I convert my height from cm to feet and inches?
Divide your height in cm by 2.54 to get inches, then divide by 12. The whole number is feet and the remainder is inches. For 175 cm: 175 ÷ 2.54 = 68.9 inches, which is 5 feet 8.9 inches.
How many kilometers are in a mile?
One mile is 1.609344 kilometers. A quick estimate: multiply miles by 1.6, or multiply kilometers by 0.62 to get miles.
What is a nautical mile?
A nautical mile is exactly 1,852 meters, a little longer than a normal mile. It is used at sea and in aviation because it is based on one minute of latitude on the Earth.
