Length Converter

Convert between 12 length units — type in any field and watch all others update instantly.

Length Converter

Type in any field — all others update live

Metric Units
Nanometer (nm)
Micrometer (µm)
Millimeter (mm)
Centimeter (cm)
Meter (m)
Kilometer (km)
Imperial & Special
Inch (in)
Foot (ft)
Yard (yd)
Mile (mi)
Nautical Mile (nmi)
Light Year (ly)
Active Unit
Meters
Centimeters
Feet
Inches
Visual Comparison

Type in any field to start converting.

How it works

Conversion formula: All units are first converted to meters (the base SI unit), then converted to the target unit using the formula:

target_value = input_value × (input_factor / target_factor)