⚡ Speed
Mph to Kph Converter
Convert mph to kph instantly. Enter any value and get the result. Includes a conversion table and the exact formula.
mph to kph
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Common conversions
| Mph | Kph |
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Formula:
How to convert mph to kph
1
Enter your value
Type the number of mph you want to convert into the left box. The result in kph appears instantly in the right box. You can also type into the right box to convert in the other direction.
2
Use the swap button
Click the ⇄ Swap button to reverse the conversion — Kph to Mph. Your current value carries across so you don't have to re-enter anything.
3
About Mph and Kph
Miles per hour (mph) is used in the UK and US. Kilometres per hour (km/h) is used elsewhere. The UK motorway limit of 70 mph = 113 kph.