What is 60 mph in km/h?

96.56064 km/h. Multiply mph by 1.609344.

One knot is 1.852 km/h, or 1.15078 mph — one nautical mile per hour.

Is Mach 1 a fixed speed?

No. Mach 1 is the local speed of sound, which varies with air temperature. This table uses the sea-level figure of 340.29 m/s.

Unit-To-Unit Speed conversion

Speed Converter

1 mile per hour = 1.609344 kilometres per hour

Speed is distance over time, so every unit here is a ratio of two other conversions and all of them reduce cleanly to metres per second. The knot — one nautical mile per hour — remains the standard in aviation and shipping, while Mach is not a fixed speed at all: the figure below uses 340.29 m/s, the speed of sound in dry air at sea level and 15 °C, which falls with altitude and temperature.

Formula km/h = mph × 1.609344

Speed

14 units, base metre per second. mph by default.

Convert from

Enter value to convert from (digits only, max 24)

Results update on every keystroke.

=1 mile per hour equals

Decimals 6

Equals to

1.609344

Kilometre per hourkm/h

0.447040

Metre per secondm/s

0.868976

Knotkn

1.466667

Foot per secondft/s

17.600000

Inch per secondin/s

44.704000

Centimetre per secondcm/s

26.822400

Metre per minutem/min

88.000000

Foot per minuteft/min

0.016667

Mile per minutemi/min

0.000278

Mile per secondmi/s

0.000447

Kilometre per secondkm/s

0.001314

Mach (sea level)Ma

0.000000

Speed of lightc

Mile per hour to Kilometre per hour — quick reference
Mile per hour	Kilometre per hour
1 mph	1.609344 km/h
2 mph	3.218688 km/h
3 mph	4.828032 km/h
5 mph	8.04672 km/h
10 mph	16.09344 km/h
25 mph	40.2336 km/h
50 mph	80.4672 km/h
100 mph	160.9344 km/h
250 mph	402.336 km/h
500 mph	804.672 km/h
1000 mph	1609.344 km/h

Popular speed conversions

Mile per hour to Kilometre per hour Kilometre per hour to Mile per hour Knot to Mile per hour Knot to Kilometre per hour Metre per second to Kilometre per hour Mile per hour to Metre per second Mach (sea level) to Mile per hour

Frequently asked

What is 60 mph in km/h?: 96.56064 km/h. Multiply mph by 1.609344.
How fast is a knot?: One knot is 1.852 km/h, or 1.15078 mph — one nautical mile per hour.
Is Mach 1 a fixed speed?: No. Mach 1 is the local speed of sound, which varies with air temperature. This table uses the sea-level figure of 340.29 m/s.

Other converters

Weight converter Temperature converter Length converter Distance converter Fluid converter Pixels converter Area converter