m/s, km/h, mph and knots.
Open the Speed converter →One of 23 unit converters in the ABC Chemistry Calculator Suite, alongside 44 chemistry, physics and maths tools. Nothing is behind a login and no value you type is sent anywhere — the conversion runs in your own browser.
The link above opens the suite with the Speed set already selected.
Any unit here converts to any other in one step — for example m/s to km/h, m/s to mph, m/s to knot. Values are converted in your browser; nothing is sent to a server.