Speed converter
Speed is distance traveled per unit of time. Convert kilometers per hour, miles per hour, meters per second, feet per second and knots – the unit of aviation and shipping (1 knot = 1 nautical mile per hour).
Speed units
- Meter per Second (m/s) — The meter per second (m/s) is a unit of speed in the International System of Units (SI). It is the reference unit for all speed conversions on this site.
- Kilometer per Hour (km/h) — The kilometer per hour (km/h) is a metric unit of speed accepted for use with the SI. 1 kilometer per hour equals 0.2777777778 meters per second. This value is exact by definition.
- Mile per Hour (mph) — The mile per hour (mph) is a unit of speed used in both the imperial and US customary systems. 1 mile per hour equals 0.44704 meters per second. This value is exact by definition.
- Knot (kn) — The knot (kn) is a unit of speed. 1 knot equals 0.5144444444 meters per second. This value is exact by definition.
- Foot per Second (ft/s) — The foot per second (ft/s) is a unit of speed used in both the imperial and US customary systems. 1 foot per second equals 0.3048 meters per second. This value is exact by definition.