Length Unit Converter

Quick conversion between different length measurement units

Length conversion

Enter a value and choose units

Value

From unit

To unit

❓ How the converter works

The converter translates length between millimeters, centimeters, meters, kilometers, inches, feet, yards and miles. Values are first converted to meters, then to the target unit.

📐 Basic relationships

1 m = 1000 mm = 100 cm
1 km = 1000 m
1 inch = 0.0254 m · 1 foot = 0.3048 m
1 yard = 0.9144 m · 1 mile = 1609.344 m

💡 Example

Convert 1 mile to kilometers: 1609.344 m ÷ 1000 = 1.6093 km.

✅ Tips

Construction and science usually use the metric system.
In the US feet and inches are common — use the converter for drawings.
1 foot = 12 inches; 1 yard = 3 feet; 1 mile = 5280 feet.