KPH to MPH Converter
Enter a speed, or paste it with km/h, kph, or mph.
How to convert kph to mph
1 international mile = 1.609344 kilometers exactly. Divide km/h by 1.609344 to get mph; multiply mph by 1.609344 to get km/h.
A speed of 100 km/h is approximately 62.137119 mph. The same factor works for any constant speed because hours remain unchanged on both sides of the conversion.
KPH, km/h and kmh all mean kilometers per hour. MPH means miles per hour. Paste a supported unit to set the direction automatically, or use Swap to convert the unrounded result back.
This page converts speed only. It does not calculate travel time, distance, vehicle stopping distance, or a legal speed limit. Use the related nautical converter for knots and simple voyage arithmetic.
Kilometers per hour (km/h) to Miles per hour (mph) chart
Values use the same exact factor as the calculator and are displayed to six decimal places where needed.
| Kilometers per hour (km/h) | Miles per hour (mph) |
|---|---|
| 1 | 0.621371 |
| 5 | 3.106856 |
| 10 | 6.213712 |
| 20 | 12.427424 |
| 30 | 18.641136 |
| 50 | 31.06856 |
| 60 | 37.282272 |
| 80 | 49.709695 |
| 100 | 62.137119 |
| 120 | 74.564543 |
| 200 | 124.274238 |
Input and rounding
Use a decimal point, a fraction such as 1/2, or a mixed number such as 1 1/2. Properly grouped thousands commas are accepted. Negative measurements, unrecognized units and incomplete numbers need to be corrected before copying. Clearing the input also clears the previous answer.
Decimal places controls display rounding, not the accuracy of your original measurement. Swap uses the underlying result rather than the rounded text. Inputs and outputs must be finite, nonnegative and no larger than one trillion. Very small positive values use scientific notation instead of being displayed as zero.
Frequently asked questions
How many mph is 100 kph?
100 km/h is approximately 62.137119 mph. Divide 100 by exactly 1.609344.
How many kph is 60 mph?
60 mph is exactly 96.56064 km/h before display rounding. Paste 60 mph to set the reverse direction automatically.
Are kph and km/h the same?
Yes. Both mean kilometers per hour. The SI-style symbol is km/h; kph is a common plain-text abbreviation.
Can I paste a speed with its unit?
Yes. The converter accepts kph, km/h, kmh, kilometers per hour, mph, and miles per hour. A bare number uses the selected source unit.