Convert kilometers per hour to miles per hour

1 km/h = 0.62137119 mph. Change the amount below, or read the formula and the reference table further down.

1 kilometer per hour equals

0.62137119miles per hour

1 km/h = 0.62137119 mph

The formula

Kilometers per hour and miles per hour both measure speed from the same zero, so a single multiplier does the job.

mph = km/h × 0.6213711922

Going the other way? Convert miles per hour to kilometers per hour.

Kilometers per hour to miles per hour table

Common values, rounded for reading.

Kilometers per hour (km/h)Miles per hour (mph)
10.621371
21.2427
31.8641
42.4855
53.1069
63.7282
74.3496
84.971
95.5923
106.2137
159.3206
2012.4274
2515.5343
3018.6411
4024.8548
5031.0686
7546.6028
10062.1371
250155.34
500310.69
1,000621.37

Questions people ask

How many miles per hour are in a kilometer per hour?
One kilometer per hour equals 0.6213711922 miles per hour.
How do I convert kilometers per hour to miles per hour by hand?
Multiply the number of kilometers per hour by 0.6213711922. For a rough check, 0.621 is close enough for most everyday use.
What is 1 kilometer per hour in miles per hour?
1 kilometer per hour is 0.62137119 miles per hour.

Calcuit generates this page from a unit table, so the factors here match every other page on the site.

Cookies on Calcuit
We use essential cookies to remember this choice and, if you sign in, to keep you signed in. Advertising cookies from Google AdSense are optional. They are not set, and the AdSense script is not loaded, unless you accept.