Length Converter
Convert between metres, feet, inches, miles, kilometres, and more in one click.
Quick presets:
Live Conversion
Metric
Imperial
Other
Common References
Tip: Type in any unit and all others update instantly. Use copy buttons (๐) to copy values for sharing.
How it works
Base Unit: 1 meter Metric to Meter: 1 cm = 0.01 m | 1 mm = 0.001 m | 1 km = 1000 m Imperial to Meter: 1 in = 0.0254 m | 1 ft = 0.3048 m | 1 yd = 0.9144 m | 1 mi = 1609.344 m Other to Meter: 1 nautical mile = 1852 m | 1 light year = 9.461 ร 10ยนโต m Common References: 1 meter = 3.281 ft = 39.37 in 1 km = 0.621 mi = 1094 yd 1 mile = 1.609 km = 5280 ft Marathon = 42.195 km Half marathon = 21.0975 km
Enter a distance in any unit and see the conversion to all others instantly. Supports metric (millimeters to kilometers), imperial (inches to miles), and fun units like light years and nautical miles. Use quick-fill buttons for common distances: a 100m sprint, 5K run, or full marathon. Copy any result to share or compare conversions.
Why this matters
Distance is measured differently around the world. The US uses miles and feet; most countries use metres and kilometres. Runners think in kilometres; pilots use nautical miles. When you're cooking, shopping, travelling, or running, you often need to convert between units. This calculator makes it instant and effortlessโno mental maths, no confusion, just type and see.
Related calculators
Learn more
The complete guide to length converter
Formulas, examples, and tips explained in plain English