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Conversions

Length Converter

Convert between metres, feet, inches, miles, kilometres, and more in one click.

Quick presets:

Live Conversion

Metric

Imperial

Other

Common References

1 meter3.281 ft | 39.37 in
1 km1000 m | 0.621 mi | 1094 yd
1 mile1.609 km | 5280 ft | 1760 yd
Marathon42.195 km | 26.219 mi
Half marathon21.0975 km | 13.109 mi
5K5 km | 3.107 mi

Tip: Type in any unit and all others update instantly. Use copy buttons (๐Ÿ“‹) to copy values for sharing.

How it works

Formula
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— 10ยนโต 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 effortlessโ€”no mental maths, no confusion, just type and see.

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Learn more

The complete guide to length converter

Formulas, examples, and tips explained in plain English

Disclaimer: Results provided by Calcr are estimates for informational and educational purposes only. They do not constitute financial, medical, legal, tax, or professional advice of any kind. Always verify important calculations independently and consult a qualified professional before making financial, health, or legal decisions. Calcr accepts no liability for errors in results or decisions made based on them.