Enter a value and select the "From" and "To" speed units (e.g. km/h to mph, knots to m/s). The result updates as you type. All conversion runs in your browser.
About Speed Converter
Convert between speed units: km/h, mph, m/s, knots, and ft/s. Useful for driving, aviation, sports, and science. Conversions use standard factors. Everything runs in your browser — no server, no signup.
How to use
- Enter the numeric Value you want to convert.
- Select the From unit (e.g. km/h) and the To unit (e.g. mph).
- The Result appears automatically. Use Clear to reset.
Frequently Asked Questions
Which speed units are supported?
Kilometers per hour (km/h), miles per hour (mph), meters per second (m/s), knots (nautical miles per hour), feet per second (ft/s).
Is my data sent to a server?
No. All conversion happens in your browser. Nothing is uploaded.
What is a knot?
One knot is one nautical mile per hour (1.852 km/h). It is commonly used in aviation and maritime navigation.