How to convert km/h to MPH
To convert km/h to mph, multiply by 0.62137119. For example, 5 kmh × 0.62137119 = 3.106856 mph.
km/h to MPH conversion table
| km/h (kmh) | MPH (mph) |
|---|---|
| 0.25 | 0.155343 |
| 0.5 | 0.310686 |
| 1 | 0.621371 |
| 2 | 1.242742 |
| 3 | 1.864114 |
| 5 | 3.106856 |
| 10 | 6.213712 |
| 15 | 9.320568 |
| 20 | 12.427424 |
| 25 | 15.53428 |
| 50 | 31.06856 |
| 75 | 46.602839 |
| 100 | 62.137119 |
| 250 | 155.3428 |
| 500 | 310.6856 |
| 1000 | 621.37119 |
About the units
Kilometers per hour (kmh) — kilometers per hour, the speed unit used on roads in most of the world.
Miles per hour (mph) — miles per hour, the speed unit on US and UK road signs.
Frequently asked questions
How many mph are in one km/h?
One km/h equals 0.62137119 mph.
What is the formula to convert km/h to mph?
Multiply the value in km/h by 0.62137119. For example, 10 kmh × 0.62137119 = 6.2137119 mph.
How do I convert mph back to km/h?
Divide by 0.62137119 — or multiply by 1.609344. You can also type directly in the second box of the converter above.
Is this converter accurate?
Yes. It uses the internationally defined conversion factors (for example, 1 inch = 2.54 cm exactly and 1 pound = 0.45359237 kg exactly) and shows up to 10 significant digits.
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