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MPH to KM/H Converter
Convert miles per hour to kilometres per hour instantly, with the exact factor and a chart.
Enter a speed in miles per hour and see it in kilometres per hour instantly, together with metres per second and knots.
Cars from the United States and the United Kingdom, treadmills and many fitness apps show miles per hour. If you drive abroad or compare a running pace from an American app, this page converts it to the metric speed you know.
How to use MPH to KM/H Converter
- Enter the speed in mph (for example 60).
- Read the speed in km/h as you type.
- Check m/s or knots in the list of all units.
- Swap to convert km/h to mph.
How to convert mph to km/h
Multiply miles per hour by 1.609344, the number of kilometres in one mile. So 60 mph is about 96.56 km/h and 70 mph, the UK motorway limit, is about 112.65 km/h.
A quick estimate is to multiply by 1.6: 60 mph is roughly 96 km/h. Use the converter when you need the exact figure.
The factor comes from the definition of the international mile as exactly 1609.344 metres. Since an hour is the same in both units, only the distance changes, so speed converts with the same number as distance. The converter keeps up to ten significant digits for precise work.
MPH to KM/H chart
Rounded to two decimal places.
| mph | km/h |
|---|---|
| 5 | 8.05 |
| 10 | 16.09 |
| 15 | 24.14 |
| 20 | 32.19 |
| 25 | 40.23 |
| 30 | 48.28 |
| 40 | 64.37 |
| 50 | 80.47 |
| 55 | 88.51 |
| 60 | 96.56 |
| 65 | 104.61 |
| 70 | 112.65 |
| 80 | 128.75 |
| 100 | 160.93 |
Treadmills and running
Treadmills in the United States show speed in mph. A brisk walk at 4 mph is about 6.44 km/h, and a run at 6 mph, a ten-minute mile, is about 9.66 km/h.
In the United Kingdom, a 20 mph zone equals about 32.19 km/h and a 30 mph limit is about 48.28 km/h.
Driving abroad
Rental cars from the United States show the speedometer in mph, with km/h in small print. Road signs in Canada, Europe and most of Asia are in km/h, so knowing that 55 mph is about 88.51 km/h and 65 mph is about 104.61 km/h helps you stay within the limits.
The converter works for any speed, including wind speed in weather forecasts.
Frequently asked questions
How many km/h is 60 mph?
60 mph is about 96.56 km/h.
What is the formula?
km/h = mph × 1.609344.
How fast is 100 mph in km/h?
100 mph is about 160.93 km/h.
How do I convert km/h to mph?
Divide by 1.609344, or press swap.
How many km/h is 55 mph?
55 mph is about 88.51 km/h.
Is anything uploaded?
No. The conversion happens in your browser.
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