# Speed Conversions

Use this easy and mobile-friendly calculator to convert between various units of Speed.
Amount
From
To
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1 Mile per Hour =
1.609344 Kilometers per Hour
exact result
Decimal places
Miles per Hour
A mile per hour is a unit of speed commonly used in the United States. It is equal to exactly 1.609344 kilometers per hour.
Ordinary abbreviations: mph, mi/h
Kilometers per Hour
A kilometer per hour is a unit of speed. Something traveling at one kilometer per hour is traveling about 0.278 meters per second, or about 0.621 miles per hour.
Ordinary abbreviations: km/h, kmph, km/hr, km/hour

#### Speed Conversion Tables

some results are rounded
1 Centimeter per Second
0.032808 feet per second
0.036 kilometers per hour
0.019438 knots
0.01 meters per second
0.022369 miles per hour
0.000030184 mach
1 Foot per Second
30.48 centimeters per second
1.0973 kilometers per hour
0.59248 knots
0.3048 meters per second
0.68182 miles per hour
0.00092001 mach
1 Kilometer per Hour
27.778 centimeters per second
0.91134 feet per second
0.53996 knots
0.27778 meters per second
0.62137 miles per hour
0.00083845 mach
1 Knot
51.444 centimeters per second
1.6878 feet per second
1.852 kilometers per hour
0.51444 meters per second
1.1508 miles per hour
0.0015528 mach
Mach 1
33,130 centimeters per second
1,086.9 feet per second
1,192.7 kilometers per hour
644.00 knots
331.3 meters per second
741.10 miles per hour
1 Meter per Second
100 centimeters per second
3.2808 feet per second
3.6 kilometers per hour
1.9438 knots
2.2369 miles per hour
0.0030184 mach
1 Mile per Hour
44.704 centimeters per second
1.4667 feet per second
1.6093 kilometers per hour
0.86898 knots
0.44704 meters per second
0.0013494 mach