Length & Distance Converter
Convert between meters, kilometers, miles, yards, feet, inches, centimeters, and more.
About this calculator
Length & Distance Converter shows one value in every common unit at once. Enter a number, choose its unit, and the list below fills in metres, kilometres, centimetres, millimetres, miles, yards, feet, inches and nautical miles with no further clicks.
That all-in-one view is handy for drawings, travel plans and DIY work where you need the same length in two or three systems. The values are rounded to seven significant figures and use the exact international definitions.
How to use it
- Type the Value.
- Choose the From Unit.
- Read every other unit in the list that appears.
Method
Conversions go through metres. 1 inch = 2.54 cm exactly, 1 foot = 0.3048 m exactly, 1 yard = 0.9144 m, 1 mile = 1,609.344 m and 1 nautical mile = 1,852 m. To convert, multiply by the factor of the starting unit and divide by the factor of the target unit: value × from ÷ to.
Worked example
1 metre in other units
| Kilometres | 0.001 |
| Centimetres | 100 |
| Millimetres | 1,000 |
| Yards | 1.093613 |
| Feet | 3.28084 |
| Inches | 39.37008 |
| Nautical miles | 0.00053996 |
Tips and common mistakes
- Remember 1 inch = 2.54 cm exactly. Many other factors derive from it.
- For heights, convert feet and inches to total inches first, then multiply by 2.54.
- Do not confuse a statute mile (1.609 km) with a nautical mile (1.852 km).
- Keep extra decimals during multi-step calculations and round at the end.
- Check the unit list twice. Millimetre and micrometre are easy to mix up on small values.
Frequently asked questions
How many centimetres are in an inch?
Exactly 2.54 centimetres.
How many feet are in a metre?
About 3.28084 feet.
How many kilometres are in a mile?
1.609344 kilometres.
What is a nautical mile?
1,852 metres, used at sea and in aviation. It equals one minute of latitude.
What is a light year?
The distance light travels in a year, about 9.46 trillion kilometres.
How do I convert feet and inches to centimetres?
Multiply feet by 30.48 and inches by 2.54, then add the two results.