How many miles per hour are in a kilometer per hour?

There are 0.621371 miles per hour in one kilometer per hour. To convert kilometers per hour to miles per hour, multiply the number of kilometers per hour by 0.621371 — or, equivalently, divide by 1.60934.

How do I convert 90 kilometers per hour to miles per hour?

Multiply 90 by 0.621371: 90 kilometers per hour is 55.92 miles per hour.

km/h to mph

1 kilometer per hour is 0.621371 miles per hour.

To convert kilometers per hour to miles per hour, multiply the number of kilometers per hour by 0.621371 — or, equivalently, divide by 1.60934.
Going the other way, 1 mile per hour is 1.60934 kilometers per hour.
For example, 90 kilometers per hour is 55.92 miles per hour.

Conversion

Common kilometers per hour to miles per hour conversions
km/h (km/h)	mph (mph)
10	6.21
20	12.43
30	18.64
40	24.85
50	31.07
60	37.28
70	43.5
80	49.71
90	55.92
100	62.14
110	68.35
120	74.56
130	80.78
150	93.21
200	124.27
300	186.41

About kilometers per hour and miles per hour

Speed limits outside the U.S. and UK are posted in km/h. 100 km/h is about 62 mph, and many European motorways cap at 130 km/h, roughly 81 mph.

Frequently asked questions

How many miles per hour are in a kilometer per hour?: There are 0.621371 miles per hour in one kilometer per hour. To convert kilometers per hour to miles per hour, multiply the number of kilometers per hour by 0.621371 — or, equivalently, divide by 1.60934.
How do I convert 90 kilometers per hour to miles per hour?: Multiply 90 by 0.621371: 90 kilometers per hour is 55.92 miles per hour.
How fast is 100 km/h in mph?: 100 km/h is 62.14 mph.