How it works
- Enter the length or distance, then choose the current unit and the unit you want to convert to.
- Example: 5 kilometers is approximately 3.106856 miles.
- Use the swap button to reverse the units without typing the value again.
- The calculator uses the meter as its internal reference unit and applies fixed, precise conversion factors.
- Whole numbers and decimals are supported. Display rounding is applied only when needed without changing internal precision.
Conversion factor sources