Math & units
Speed Converter
Convert m/s, km/h, mph, feet per second and knots.
Runs locally in your browser
Type into any unit and the others update instantly.
Common conversions
- 1 Meter per second (m/s) = 3.6 Kilometer per hour (km/h)
- 1 Mile per hour (mph) = 1.609344 Kilometer per hour (km/h)
- 1 Knot (kn) = 1.852 Kilometer per hour (km/h)
- 1 Kilometer per hour (km/h) = 0.2777777778 Meter per second (m/s)
- 1 Meter per second (m/s) = 2.236936292 Mile per hour (mph)
The base unit is the meter per second. One knot is one nautical mile per hour, exactly 1852 m/h.