Speed
mph to kph Converter
1 mph = 1.6093 km/h. Enter any value and the result updates instantly.
Convert
Accuracy and rounding
For road signs, driving, cycling, and race speeds.
Speed units combine fixed distance definitions with the SI second, then display the result in distance per time.
For travel and sports, one decimal is usually readable. Keep more precision when converting specs or logs.
How to convert mph to kph
- Type the mph value in the calculator.
- Keep mph selected as the from unit and kph selected as the to unit.
- Use the instant result, or copy it with the copy button.
mph to kph chart
| mph | kph |
|---|---|
| 1 mph | 1.6093 km/h |
| 2 mph | 3.2187 km/h |
| 5 mph | 8.0467 km/h |
| 10 mph | 16.0934 km/h |
| 25 mph | 40.2336 km/h |
| 50 mph | 80.4672 km/h |
| 100 mph | 160.93 km/h |
Formula
km/h = mph x 1.609344
Example: 1 mph = 1.6093 km/h.
Source
Speed units derived from exact length definitions and the SI second.
Common questions
How do I convert mph to kph?
Enter the mph value in the converter, or multiply by the factor shown in the formula. 1 mph = 1.6093 km/h.
What should I watch out for?
Keep units clear: km/h, mph, knots, and m/s all describe distance over time.
Where does this speed conversion come from?
Speed units derived from exact length definitions and the SI second. ConverterBase uses stable definitions and fixed conversion factors, not live or rounded market data.