Length Converter
Convert between metric and imperial/US customary length units. All conversions pass through the metre, using the exact 1959 international yard-and-pound definitions (1 inch = 25.4 mm exactly).
About these conversions
- All conversions pass through the metre as the base unit.
- 1 inch is exactly 25.4 millimeters by international agreement (1959).
- 1 mile is exactly 1,609.344 meters.
- Results are shown to up to 6 decimal places; very small or large values may display in standard decimal notation.