📏 Length Converter — metric & imperial
Convert between meters, kilometers, miles, feet, inches and more with exact, standards-based factors.
How it works
- Enter the value you want to convert.
- Pick the unit you are converting from and the unit you want.
- The result updates instantly as you type, together with the exact conversion factor.
- Conversions go through the meter as the exact reference unit, so precision is preserved.
- Everything happens in your browser — no data is sent to any server.
Examples
- 1 Meter (m) = 0.001 Kilometer (km).
- Quick reference: 1 m = 0.001 km.
- Type a new value or swap the dropdowns — the result recalculates instantly.
Frequently asked questions
How do I convert m to km?
Enter your value, select Meter (m) in the “From” box and Kilometer (km) in the “To” box. For reference, 1 m = 0.001 km.
Is my text or data uploaded to a server?
No. The Length Converter runs entirely in your browser using JavaScript — nothing you type or paste is sent anywhere, and everything disappears when you close the tab.
Is this tool free to use?
Yes, completely free with no sign-up, no watermarks and no usage limits. Length Converter is part of a collection of free tools where new tools are added after review.
Does it work on phones and tablets?
Yes. The layout is fully responsive and all processing is done on your device, so it works on any modern phone, tablet or computer — even offline once the page has loaded.
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