Length converter
Free length converter between metric and imperial units — millimeters, centimeters, meters, kilometers, inches, feet, yards, miles, nautical miles, and astronomical units. Exact SI factors, instant conversion, no sign-up.
Distance. From nanometers to parsecs.
1 m = 3.28084 ft
How to use length converter
- 01Pick a category
Length, weight, temperature, or pressure. Each has its own dedicated page with the complete unit list.
- 02Type your value
Enter the number you want to convert. The result updates instantly as you type — no submit button.
- 03Swap units
Use the From and To pickers to choose any pair — metric, imperial, SI, or exotic. Swap with one click.
- 04Copy the result
Tap the copy button next to the output to paste the result anywhere.
- 05Reuse from history
Recent conversions are saved to your browser locally so you can re-run them without retyping.
Examples
Frequently asked questions
How many feet are in a meter?
A meter equals 3.28084 feet. Exactly: 1 m = 1 / 0.3048 ft, since one foot is defined as 0.3048 meters exactly.
Is a mile 5,280 feet?
Yes — the international mile is defined as exactly 5,280 feet, which works out to 1,609.344 meters. Not to be confused with the nautical mile (1,852 meters).
What's the difference between a mile and a nautical mile?
A statute (land) mile is 1,609.344 meters. A nautical mile is 1,852 meters — used in aviation and marine navigation because it corresponds to one arc-minute of latitude.
Are inches and centimeters exact?
Yes. Since 1959 the international inch is defined as exactly 25.4 millimeters, which makes every inch/centimeter conversion exact to arbitrary precision.
Last updated . Built by Tooligan.