Speed Converter
Convert km/h, mph, m/s, knots and ft/s.
Reference (in meters per second):
How to use the Speed tool
- Enter your speed in the fields above.
- Adjust any slider or type an exact number — the answer updates as you go.
- Copy the result and close the tab. Nothing you entered was sent anywhere.
About the Speed tool
Speed is distance divided by time, so conversions use the length and hour factors together — e.g. 1 m/s is exactly 3.6 km/h.
Knots (nautical miles per hour) are the standard for aviation and marine use; 1 knot is about 1.852 km/h.
Everything runs locally in your browser: no data is uploaded, no account is needed, and it works offline once the page has loaded.
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