Length Converter
Convert between meters, kilometers, miles, feet, inches, centimeters, millimeters, and yards.
Try it with this example
Enter 100 meters and convert to feet, inches, or miles. Or 5 km to miles.
What is this tool?
The Length Converter converts between meters, kilometers, miles, feet, inches, centimeters, millimeters, and yards. Enter 100 in meters and get 328.08 feet, 3937 inches, or 0.062 miles. Enter 5 km and get 3.11 miles. Travelers, engineers, and anyone working across metric and imperial systems use it. Recipes from US sites list cups and inches; European specs use meters. This tool bridges the gap—enter a value in one unit, see it in all the others.
Conversions use standard factors: 1 inch = 25.4 mm, 1 mile = 1.609344 km, etc. The tool updates in real time as you type. Large and small values are supported—from nanometers to light-years if the tool includes them, or at least the common ranges. No rounding errors for typical use; the math is exact for the displayed precision.
Use it when reading international documentation, planning travel in a country that uses different units, sizing furniture or materials, or converting construction or engineering specs. Students use it for physics and math. The tool runs entirely in your browser. No API, no server. Enter a number, pick the source unit, and read the result.
All units are linear—no area or volume. For those, use dedicated converters. This one stays focused on length and distance. Bookmark it for the next measurement conversion.
Simple, fast, and always available.