1 mile/hour = 1.609344 kilometers/hour
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| Unit | Symbol | Value |
|---|
How to Convert MPH to KM/H
The formula is kilometers/hour = miles/hour × 1.609344. 1 mile/hour = 1.609344 kilometers/hour. Type any value in the converter above for an instant answer, or use the chart below for the most common values.
This page is preset for mile/hour to kilometer/hour conversions, but you can switch either list to any of the 32 units in the Speed Converter, or go the other way with the KM/H to MPH converter.
MPH to KM/H conversion chart
| MPH | KM/H |
|---|---|
| 0.1 mph | 0.1609344 km/h |
| 0.25 mph | 0.402336 km/h |
| 0.5 mph | 0.804672 km/h |
| 1 mph | 1.609344 km/h |
| 2 mph | 3.218688 km/h |
| 3 mph | 4.828032 km/h |
| 4 mph | 6.437376 km/h |
| 5 mph | 8.04672 km/h |
| 6 mph | 9.656064 km/h |
| 7 mph | 11.265408 km/h |
| 8 mph | 12.874752 km/h |
| 9 mph | 14.484096 km/h |
| 10 mph | 16.09344 km/h |
| 11 mph | 17.702784 km/h |
| 12 mph | 19.312128 km/h |
| 13 mph | 20.921472 km/h |
| 14 mph | 22.530816 km/h |
| 15 mph | 24.14016 km/h |
| 16 mph | 25.749504 km/h |
| 17 mph | 27.358848 km/h |
| 18 mph | 28.968192 km/h |
| 19 mph | 30.577536 km/h |
| 20 mph | 32.18688 km/h |
| 25 mph | 40.2336 km/h |
| 30 mph | 48.28032 km/h |
| 40 mph | 64.37376 km/h |
| 50 mph | 80.4672 km/h |
| 55 mph | 88.51392 km/h |
| 60 mph | 96.56064 km/h |
| 70 mph | 112.65408 km/h |
| 75 mph | 120.7008 km/h |
| 80 mph | 128.74752 km/h |
| 90 mph | 144.84096 km/h |
| 100 mph | 160.9344 km/h |
| 150 mph | 241.4016 km/h |
| 200 mph | 321.8688 km/h |
| 250 mph | 402.336 km/h |
| 500 mph | 804.672 km/h |
| 1,000 mph | 1,609.344 km/h |
Common MPH to KM/H conversions
- 1 mile/hour = 1.609344 kilometers/hour
- 20 mph = 32.18688 km/h
- 30 mph = 48.28032 km/h
- 55 mph = 88.51392 km/h
- 60 mph = 96.56064 km/h
- 70 mph = 112.65408 km/h
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How to Use the MPH to KM/H Converter
- Type a value in the From box and choose its unit.
- Pick the unit you want in the To list — the result updates as you type.
- Use the swap button to reverse the conversion, or type in the To box to convert backwards.
- Check the All conversions table to see your value in every unit; click a row to make it the target.
Frequently Asked Questions
How many kilometers/hour are in a mile/hour?
There are 1.609344 kilometers/hour in 1 mile/hour. Going the other way, 1 kilometer/hour = 0.6213711922 miles/hour.
How do I convert MPH to KM/H?
Use the formula kilometers/hour = miles/hour × 1.609344. For example, 1 mile/hour = 1.609344 kilometers/hour. Or type the value in the converter above and the answer appears as you type.
What is the MPH to KM/H formula?
kilometers/hour = miles/hour × 1.609344 — the conversion factor is exact to the digits shown, using the international definitions of both units.
What is 20 MPH in KM/H?
20 MPH = 32.18688 KM/H.
What is 30 MPH in KM/H?
30 MPH = 48.28032 KM/H.
What is 55 MPH in KM/H?
55 MPH = 88.51392 KM/H.
What is 60 MPH in KM/H?
60 MPH = 96.56064 KM/H.
What is 70 MPH in KM/H?
70 MPH = 112.65408 KM/H.
How do I convert KM/H back to MPH?
Use the swap button in the converter above, or open our KM/H to MPH converter. miles/hour = kilometers/hour × 0.6213711922.
Is this MPH to KM/H converter accurate?
Yes. It uses exact unit definitions and double-precision maths, and you can show up to 15 significant digits. The table below is calculated with the same formula.
Can I convert MPH to other speed units?
Yes — pick any unit in the From and To lists above, or open the full Speed Converter, which handles 32 speed units.
Is the MPH to KM/H converter free?
Yes, it is free with no sign-up, and every conversion runs in your browser so nothing is sent to a server.