Enter a length in any unit and instantly see the equivalent in millimeters, centimeters, meters, kilometers, inches, feet, yards, and miles. All conversion happens in your browser.
Each unit is stored as a multiplier relative to a base unit. When you enter a value, the tool converts it to the base unit first, then multiplies by each target unit's factor. Temperature is handled separately using its own formulas (°C → °F: multiply by 9/5 then add 32; °C → K: add 273.15). All conversion runs in your browser. Our servers are not involved.
All conversions happen instantly in your browser tab. Our servers are not involved at any point.
For converting between bytes, kilobytes, and gigabytes, try the byte converter. To work with fractions alongside metric values, use the fraction calculator. For taking a percentage of a converted value, see the percentage calculator.