How to convert mph to kph
Useful for road speeds, vehicle specifications, running pace, and travel planning. CalcOS derives the conversion from the exact international mile and exact metric definitions.
km/h = mph × 1.609344
Worked example: 60 mph = 96.56064 km/h.
MPH to KPH conversion table
| mile per hour (mph) | kilometer per hour (km/h) |
|---|---|
| 1 | 1.609344 |
| 5 | 8.04672 |
| 10 | 16.09344 |
| 25 | 40.2336 |
| 50 | 80.4672 |
| 100 | 160.9344 |
Speed is distance divided by time
Miles per hour and kilometers per hour compare distances traveled during the same one-hour duration. Because the hour cancels, their relationship is the exact mile-to-kilometer relationship.
Related speed conversion
Sources: NIST Handbook 44, Appendix C and the BIPM SI Brochure. See the complete Speed Converter guide.