How to use
Enter a number, choose the units to convert from and to, and the result appears instantly. Below it you’ll see the same value in every length unit. “Swap” reverses the direction.
Definitions
- 1 inch = 2.54 cm exactly (international agreement of 1959).
- 1 foot = 12 inches = 30.48 cm.
- 1 yard = 3 feet = 0.9144 m.
- 1 mile = 1,760 yards = 1.609344 km.
- 1 nautical mile = 1,852 m, used in aviation and at sea.
Examples
- 6 ft = 1.8288 m.
- 5 ft 10 in (70 in) = 177.8 cm.
- A 10K race is 6.21 miles, a marathon (42.195 km) 26.22 miles.
FAQ
How many centimeters are in an inch? Exactly 2.54.
How do I convert feet and inches to centimeters? Multiply feet by 12, add the inches, then multiply by 2.54. For height-based calculations, the BMI calculator accepts entries like 5’10” directly.
For areas, use the area converter.