Speed converters
Kilometers per hour, miles per hour, knots, meters per second — for driving, sailing, running, and physics.
5 units20 conversions
Speed›km/h → mph
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1 km/h=
0.621372mph
formula1 km/h = 0.621372 mph
Popular in speed
Kilometers per Hour to Miles per Hour
1 km/h = 0.621372 mph
Miles per Hour to Kilometers per Hour
1 mph = 1.60934 km/h
Knots to Kilometers per Hour
1 kn = 1.852 km/h
Meters per Second to Kilometers per Hour
1 m/s = 3.6 km/h
Meters per Second to Miles per Hour
1 m/s = 2.23694 mph
Meters per Second to Knots
1 m/s = 1.94385 kn
Meters per Second to Feet per Second
1 m/s = 3.28084 ft/s
Kilometers per Hour to Meters per Second
1 km/h = 0.277778 m/s
Kilometers per Hour to Knots
1 km/h = 0.539958 kn
Kilometers per Hour to Feet per Second
1 km/h = 0.911345 ft/s
All speed conversions
20 pairsEvery unit pair in this category. Tap any cell to open that conversion.
| from \ to | m/sMeters per Second | km/hKilometers per Hour | mphMiles per Hour | knKnots | ft/sFeet per Second |
|---|---|---|---|---|---|
| m/sMeters per Second | — | × 3.6 | × 2.23694 | × 1.94385 | × 3.28084 |
| km/hKilometers per Hour | × 0.277778 | — | × 0.621372 | × 0.539958 | × 0.911345 |
| mphMiles per Hour | × 0.44704 | × 1.60934 | — | × 0.868977 | × 1.46667 |
| knKnots | × 0.514444 | × 1.852 | × 1.15078 | — | × 1.68781 |
| ft/sFeet per Second | × 0.3048 | × 1.09728 | × 0.681818 | × 0.592484 | — |
Each cell shows the multiplier from row → column. e.g. 1 m/s × n = result in column units.
About speed units
Common speed units
Kilometers per hour (km/h)
The metric road-speed standard.
Miles per hour (mph)
Used in the US, UK, and a few others.
Meters per second (m/s)
The SI unit. Used in physics and athletics.
Knot
Nautical mile per hour. Used by ships and aircraft. About 1.852 km/h.
Frequently asked
Quick mph to kph?
Multiply by 1.6 (or by 8/5). 60 mph is about 97 km/h.
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iloveunit · Speed hub · v0.14 of 4 in the ilove* ecosystem · ♥ = 1