Speed Converter
Convert speed between kilometres per hour, miles per hour, metres per second, feet per second and knots.
Result0.62137119
Popular Speed conversions
Kilometers per hour → Miles per hour
1 km/h = 0.62137119 mph
Miles per hour → Kilometers per hour
1 mph = 1.609344 km/h
Meters per second → Kilometers per hour
1 m/s = 3.6 km/h
Kilometers per hour → Meters per second
1 km/h = 0.27777778 m/s
Knots → Kilometers per hour
1 kn = 1.852 km/h
Kilometers per hour → Knots
1 km/h = 0.5399568 kn
Miles per hour → Meters per second
1 mph = 0.44704 m/s
Feet per second → Miles per hour
1 ft/s = 0.68181818 mph
About speed units
Speed is distance divided by time. Metres per second is the SI unit, but everyday speed uses kilometres per hour (most of the world) or miles per hour (US and UK). Knots — one nautical mile per hour — are standard in aviation and shipping.
A quick mental conversion: to go from m/s to km/h multiply by 3.6, and 100 km/h is very close to 62 mph.
Handy Speed reference points
- 100 km/h ≈ 62 mphHighway speed
- 1 m/s = 3.6 km/hMetre per second to km/h
- ≈ 5 km/hAverage walking pace
- 1 kn = 1.852 km/hKnot to km/h
- ≈ 1,235 km/hSpeed of sound in air
Supported Speed units
- Meters per second (m/s) — The SI unit of speed, one metre per second.
- Kilometers per hour (km/h) — Kilometres per hour, the common road-speed unit.
- Miles per hour (mph) — Miles per hour, used in the US and UK.
- Feet per second (ft/s) — Feet per second, used in some engineering contexts.
- Knots (kn) — A knot, one nautical mile per hour, used at sea and in the air.
This tool is provided for general information only. Verify important figures independently. · Last reviewed: August 25, 2026