Multiply by 1.609344
km/h = mph × 1.609344
Imperial to metric
MPH to km/h.
Convert miles per hour (mph) to kilometers per hour (km/h) instantly, with a clear result and exact conversion factor.
mph to km/h Exact speed factor Free to use
Speed calculator
Convert your speed.
1 mile per hour is about 1.609344 kilometers per hour.
The conversion
The mph-to-km/h formula.
Use the exact international mile conversion factor.
Convert 60 mph
60 × 1.609344 = 96.56064 km/h.
A mile per hour
1 mph is exactly 1.609344 km/h.
Quick reference
MPH to km/h chart.
Common speeds and their kilometer-per-hour equivalents.
| Miles per hour | Kilometers per hour |
|---|---|
| 1 | 1.609344 |
| 5 | 8.04672 |
| 10 | 16.09344 |
| 50 | 80.4672 |
| 100 | 160.9344 |
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MPH to km/h, explained
Good to know.
Quick answers about this speed conversion.
How do I convert mph to km/h?
Multiply miles per hour by 1.609344. For example, 60 mph equals 96.56064 km/h.
How many kilometers per hour are in one mile per hour?
One mile per hour is exactly 1.609344 kilometers per hour.
Can I enter decimal speeds?
Yes. Enter any non-negative whole or decimal speed.