Speed Converter
Free online speed converter — convert between Metres/second, Kilometres/hour, Miles/hour, Knot and more, instantly in your browser.
All conversions
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Runs entirely in your browser — nothing you enter is uploaded or stored.
How this speed converter works
Type a value, pick the unit you have and the unit you want — the result updates instantly, along with a full table converting your value into every supported speed unit. All math runs locally in your browser.
Supported units
- Metres/second (m/s)
- Kilometres/hour (km/h)
- Miles/hour (mph)
- Knot (kn)
- Mach (sea level)
Frequently asked questions
How do I convert Metres/second to Kilometres/hour?
Enter your value, pick Metres/second as “From” and Kilometres/hour as “To” — the result updates as you type. 1 Metres/second = 3.6 Kilometres/hour.
Which speed units does this converter support?
5 units: Metres/second, Kilometres/hour, Miles/hour, Knot, Mach. The table below shows your value in every unit at once.
Is this speed converter free and private?
Yes — completely free, no sign-up, and all conversion happens locally in your browser. Nothing you enter is uploaded or stored.