Convert miles per hour to kilometers per hour instantly. Type a value below to see the result, or press Swap direction to convert kilometers per hour back to miles per hour. The tool uses the exact conversion factor, and a quick-reference table is below.
Kilometers per hour
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Conversion formula
km/h = mph × 1.609344
To estimate, multiply by 1.6: 60 mph is about 96 km/h (exactly 96.56).
Quick reference table
| Miles per hour (mph) | Kilometers per hour (km/h) |
|---|---|
| 5 mph | 8.04672 km/h |
| 10 mph | 16.0934 km/h |
| 20 mph | 32.1869 km/h |
| 30 mph | 48.2803 km/h |
| 40 mph | 64.3738 km/h |
| 50 mph | 80.4672 km/h |
| 60 mph | 96.5606 km/h |
| 70 mph | 112.654 km/h |
| 80 mph | 128.748 km/h |
| 100 mph | 160.934 km/h |
Frequently asked questions
How do I convert miles per hour to kilometers per hour?
km/h = mph × 1.609344
How do I convert kilometers per hour back to miles per hour?
Use the reverse formula, or press Swap direction in the converter above. You can also use our reverse converter.
How fast is 70 mph in km/h?
70 mph is about 112.7 km/h.
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Conversions use standard factors. Check critical measurements.