If you are an American reading about a European car top speed or a foreign weather report, you convert kph to mph. Divide the kph value by 1.61. A 100 kph speed limit is roughly 62 mph.
| Kilometer/hour (km/h) | Miles/hour (mph) |
|---|---|
| 0 | 0 |
| 10 | 6.213717 |
| 20 | 12.427434 |
| 30 | 18.641151 |
| 50 | 31.068584 |
| 60 | 37.282301 |
| 100 | 62.137169 |
| 120 | 74.564603 |
Multiply the kph value by 0.621371
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