Speed converter
Metres per second, km/h, mph, knots, feet per second. Type a value, pick the units; the result and the table update as you type, and the address bar keeps the conversion so you can share it.
1 kmh = 0.621371 mph
1 kilometre per hour in every speed unit
| Unit | Value | Symbol |
|---|---|---|
| metre per second | 0.277778 | ms |
| kilometre per hour | 1 | kmh |
| mile per hour | 0.621371 | mph |
| knot | 0.539957 | kn |
| foot per second | 0.911344 | fts |
Other converters: Length · Area · Volume · Mass · Temperature · Time · Energy · Power · Pressure · Data · Angle · Frequency · Fuel economy
About the speed converter
Conversions use exact definitions where they exist (an inch is 25.4 mm, a pound is 0.45359237 kg, a US gallon is 3.785411784 L) and standard values elsewhere; results are shown to six significant figures. Temperature converts through Celsius; fuel economy is an inverse relation, so it converts through litres per 100 km. Everything runs in your browser and nothing you type is stored — the address bar simply keeps the value and units so you can bookmark or share a conversion. More tools: Tools for students, including the scientific calculator, which also understands units inline (5 km / 20 minutes to km/h).