Miles per hour to Kilometres per hour Converter
Convert miles per hour to kilometres per hour instantly with a local, precise conversion. Enter decimals, zero, negative values where meaningful, or scientific notation.
How to convert miles per hour to kilometres per hour
1 mph = 1.609344 km/h. Convert through metres per second.
Worked examples
2 mph equals 3.218688 km/h. Enter any valid finite value above for an immediate result.
Miles per hour to Kilometres per hour conversion table
| Miles per hour (mph) | Kilometres per hour (km/h) |
|---|---|
| 1 mph | 1.609344 km/h |
| 2 mph | 3.218688 km/h |
| 5 mph | 8.04672 km/h |
| 10 mph | 16.09344 km/h |
| 20 mph | 32.18688 km/h |
| 25 mph | 40.2336 km/h |
| 50 mph | 80.4672 km/h |
| 100 mph | 160.9344 km/h |
Reverse conversion: Kilometres per hour to Miles per hour Converter
Frequently asked questions
How do I convert miles per hour to kilometres per hour?
1 mph = 1.609344 km/h. Convert through metres per second.
Can I enter decimals or scientific notation?
Yes. The converter accepts decimals, grouped numbers and scientific notation, then formats the result without changing the underlying calculation.
Is this conversion performed online?
The page is delivered by the website, but the value conversion itself runs locally in your browser and is not submitted to a calculation service.