Length Converter
Convert metres, feet, inches, centimetres, kilometres, miles and more.
What do you want to convert?
Show this value in every unit
Runs in your browser — your data never leaves your device.
About the Length Converter
Convert heights, room sizes, distances and measurements between metric and imperial units. Type a value and pick the units; the full table shows the value in every length unit at once.
How to use the Length Converter
- Enter the value.
- Choose the From and To units. Use the swap button to reverse them.
- Open Show this value in every unit for a complete table.
How it works
Exact international definitions are used:
- 1 inch = 2.54 cm
- 1 foot = 12 inches = 0.3048 m
- 1 yard = 0.9144 m
- 1 mile = 1,609.344 m
- 1 nautical mile = 1,852 m
Examples
- 5 ft 7 in = 67 in × 2.54 = 170.18 cm
- 10 km = 6.2137 miles
- 1 m = 3.2808 ft
Frequently asked questions
How do I convert my height from feet and inches to cm?
Convert feet to inches (feet × 12), add the inches, then multiply by 2.54. For example 5 ft 10 in = 70 in = 177.8 cm.