km/h to mph
1 kilometer per hour equals 0.621371 miles per hour. Formula: mph = km/h ÷ 1.609344 (≈ km/h × 0.6214).
= 62.1371 mph
Other direction: mph to km/h
Formula
mph = km/h ÷ 1.609344 (≈ km/h × 0.6214)
Example: 100 km/h = 62.1371 mph.
When you need km/h to mph
European motorway signs and car speedometers in km/h need translating for drivers used to mph. 50 km/h is 31.1 mph (urban), 100 km/h is 62.1 mph, and 130 km/h is 80.8 mph (a common continental limit).
Mental estimate: multiply km/h by 0.6. 120 × 0.6 = 72, close to the exact 74.6 mph.
Common km/h to mph values
| Kilometers per hour (km/h) | Miles per hour (mph) |
|---|---|
| 30 | 18.6411 |
| 50 | 31.0686 |
| 60 | 37.2823 |
| 80 | 49.7097 |
| 90 | 55.9234 |
| 100 | 62.1371 |
| 110 | 68.3508 |
| 120 | 74.5645 |
| 130 | 80.7783 |
FAQ
What is 100 km/h in mph?
100 km/h is 62.14 mph. Divide by 1.609, or multiply by 0.6214.
What is 50 km/h in mph?
50 km/h is 31.07 mph — the usual urban limit in much of Europe is a bit over 30 mph.