M/s to Km/h Converter
Convert m/s to km/h instantly, with every other common unit shown too. Free, and runs entirely in your browser — nothing you enter is uploaded or stored.
About Speed Converter
Converts a speed between kilometres per hour, miles per hour, metres per second, feet per second and knots, all at once from a single value. Road speeds, wind speeds, running speeds and boat speeds all use different units, and this puts them side by side.
For walking, running and cycling speeds — up to 60 km/h — it also gives the pace, the time it takes to cover a kilometre or a mile, which is how runners and their watches usually describe speed.
Where it helps
- Road, scientific and nautical units side by side from one value.
- Adds a pace per kilometre and per mile for running and cycling speeds.
- Exact definitions for every unit, including the knot at 1,852 metres per hour.
- Accepts decimals, so a wind speed of 4.5 m/s converts as easily as a car's.
Limits
- Mach is left out, because the speed of sound depends on the air temperature and altitude.
- Pace is only shown up to 60 km/h, where it stops being a useful way to read a speed.
- It converts a speed; working out a travel time from a distance is a separate calculation.
Frequently asked questions
How do I convert km/h to mph?
Divide by 1.609344, or multiply by about 0.62. So 100 km/h is roughly 62 mph.
What is a knot?
One nautical mile per hour, which is 1.852 km/h or about 1.15 mph. It is the unit for ships, aircraft and wind speeds in marine forecasts.
How do I turn a speed into a running pace?
Divide 60 by the speed in km/h to get minutes per kilometre. The converter does this for you and writes it as minutes and seconds, such as 5:30.
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