Speed converter
Convert speeds between km/h, mph, m/s, and knots instantly.
Calculations run on your device. We do not send this data to any server. Soliviqo tools run in your browser. No sign-up or account is required.
How it works
Converts speeds between metres per second, kilometres per hour, miles per hour, and knots. Use it to read speed limits abroad, sports records, or aviation and sailing data.
Formula
1 m/s = 3.6 km/h · 1 mph = 1.609344 km/h · 1 knot = 1.852 km/h
Example
100 km/h = 62.14 mph = 27.78 m/s = 53.99 knots.
Frequently asked questions
What is a knot?
One nautical mile per hour, i.e. 1.852 km/h. It is used in maritime and air navigation.
How do I roughly go from km/h to mph?
Multiply by about 0.62: 80 km/h is roughly 50 mph.