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Km/h to Mph Converter
Convert kilometers per hour to miles per hour instantly, with every other speed unit alongside.
Enter a speed to convert it
Enter a speed and pick its unit. Every other unit is calculated live as you type — right here in your browser, with nothing sent to a server.
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How to convert km/h to mph
Divide kilometers per hour by 1.609344 to get miles per hour, or multiply by 0.621371. For example, 100 km/h × 0.621371 = 62.14 mph. A quick estimate is to multiply by 6 and divide by 10: 120 km/h is roughly 72 mph (exactly 74.56 mph). This is handy for reading speed limits when driving abroad.
Kilometers per hour to miles per hour table
| Kilometers per hour (km/h) | Miles per hour (mph) |
|---|---|
| 30 km/h | 18.6411 mph |
| 50 km/h | 31.0686 mph |
| 80 km/h | 49.7097 mph |
| 100 km/h | 62.1371 mph |
| 120 km/h | 74.5645 mph |
| 130 km/h | 80.7783 mph |
Common questions
What is 120 km/h in mph?
120 km/h is about 74.56 mph.
What is 50 km/h in mph?
50 km/h, a common urban limit, is about 31.07 mph.
What is the formula for km/h to mph?
mph = km/h ÷ 1.609344, which is about km/h × 0.621371.