How to convert kilometers per hour to miles per hour
One kilometer per hour equals 0.621371 miles per hour. To convert, multiply the number of kilometers per hour by 0.621371 (or divide by 1.609344):
Mental-math shortcut: Multiply km/h by 5 and divide by 8 (or multiply by 0.6): 100 km/h ≈ 62 mph.
Example
Convert 100 kilometers per hour to miles per hour: 100 km/h × 0.621371 = 62.1371 mph.
km/h to mph conversion chart
| km/h (km/h) | mph (mph) |
|---|---|
| 10 | 6.2137 |
| 20 | 12.4274 |
| 30 | 18.6411 |
| 40 | 24.8548 |
| 50 | 31.0686 |
| 60 | 37.2823 |
| 70 | 43.496 |
| 80 | 49.7097 |
| 90 | 55.9234 |
| 100 | 62.1371 |
| 110 | 68.3508 |
| 120 | 74.5645 |
| 130 | 80.7783 |
| 150 | 93.2057 |
| 200 | 124.27 |
What is a kilometer per hour?
Kilometers per hour (km/h) is the standard unit for speed limits and speedometers in most countries. 100 km/h is about 62 mph, a common highway limit in Europe and Australia.
What is a mile per hour?
Miles per hour (mph) is used for speed limits in the United States and the United Kingdom. One mile per hour equals exactly 1.609344 km/h, so 60 mph is about 96.6 km/h.
Converting the other way? Use the mph to km/h converter.
Frequently asked questions
How many miles per hour is one kilometer per hour?
One kilometer per hour is 0.621371 miles per hour.
How do I convert kilometers per hour to miles per hour?
Multiply the value in kilometers per hour by 0.621371. For example, 100 km/h × 0.621371 = 62.1371 mph.
What is 120 km/h in miles per hour?
120 km/h is 74.5645 miles per hour.
How do I convert miles per hour to kilometers per hour?
Multiply miles per hour by 1.609344 (or divide by 0.621371). You can also use our mph to km/h converter.
Conversions use the internationally agreed definitions of each unit (for example, 1 inch = 2.54 cm exactly) and are rounded for display. Volume converters use US customary units unless stated otherwise.
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