Kilometers per Hour to Miles per Hour Converter
Enter the speed in kilometers per hour below to get the value converted to miles per hour.
Do you want to convert miles per hour to kilometers per hour?
How to Convert Kilometers per Hour to Miles per Hour
The fastest way to convert kilometers per hour to miles per hour is to use this simple formula:
mph = km/h ÷ 1.609344
The speed in miles per hour is equal to the speed in kilometers per hour divided by 1.609344. Since one kilometer per hour is equal to 1.609344 miles per hour, that's the conversion ratio used in the formula.
For example, here's how to convert 5 kilometers per hour to miles per hour using the formula above.
mph = (5 km/h ÷ 1.609344) = 3.106856 mph
Kilometers per hour and miles per hour are both units used to measure speed. Calculate speed in kilometers per hour or miles per hour using our speed calculator or keep reading to learn more about each unit of measure.
What Are Kilometers per Hour?
The kilometer per hour, or kilometre per hour, is an SI unit of speed in the metric system. Kilometers per hour can be abbreviated as km/h, and are also sometimes abbreviated as kph. For example, 1 kilometer per hour can be written as 1 km/h or 1 kph.
In the expressions of units, the slash, or solidus (/), is used to express a change in one or more units relative to a change in one or more other units. For example, km/h is expressing a change in length or distance relative to a change in time.
Kilometers per hour can be expressed using the formula:
vkm/h = dkm / thr
The velocity in kilometers per hour is equal to the distance in kilometers divided by time in hours.
Learn more about kilometers per hour.
What Are Miles per Hour?
The mile per hour is a US customary and imperial unit of speed. Miles per hour can be abbreviated as mph, and are also sometimes abbreviated as mi/h or MPH. For example, 1 mile per hour can be written as 1 mph, 1 mi/h, or 1 MPH.
Miles per hour can be expressed using the formula:
vmph = dmi / thr
The velocity in miles per hour is equal to the distance in miles divided by time in hours.
Learn more about miles per hour.
Kilometer per Hour to Mile per Hour Conversion Table
|Kilometers Per Hour||Miles Per Hour|
|1 km/h||0.62 mph|
|2 km/h||1.24 mph|
|3 km/h||1.86 mph|
|4 km/h||2.49 mph|
|5 km/h||3.11 mph|
|10 km/h||6.21 mph|
|15 km/h||9.32 mph|
|20 km/h||12.43 mph|
|25 km/h||15.53 mph|
|30 km/h||18.64 mph|
|35 km/h||21.75 mph|
|40 km/h||24.85 mph|
|45 km/h||27.96 mph|
|50 km/h||31.07 mph|
|55 km/h||34.18 mph|
|60 km/h||37.28 mph|
|65 km/h||40.39 mph|
|70 km/h||43.5 mph|
|75 km/h||46.6 mph|
|80 km/h||49.71 mph|
|85 km/h||52.82 mph|
|90 km/h||55.92 mph|
|95 km/h||59.03 mph|
|100 km/h||62.14 mph|
|105 km/h||65.24 mph|
|110 km/h||68.35 mph|
|115 km/h||71.46 mph|
|120 km/h||74.56 mph|
|125 km/h||77.67 mph|
|130 km/h||80.78 mph|
|135 km/h||83.89 mph|
|140 km/h||86.99 mph|
|145 km/h||90.1 mph|
|150 km/h||93.21 mph|
|155 km/h||96.31 mph|
|160 km/h||99.42 mph|
- National Institute of Standards and Technology, NIST Guide to the SI, https://www.nist.gov/pml/special-publication-811/nist-guide-si-appendix-b-conversion-factors/nist-guide-si-appendix-b8
- National Institute of Standards and Technology, NIST Guide to the SI, Chapter 6: Rules and Style Conventions for Printing and Using Units, https://www.nist.gov/pml/special-publication-811/nist-guide-si-chapter-6-rules-and-style-conventions-printing-and-using
- Wikipedia, Miles per hour, https://en.wikipedia.org/wiki/Miles_per_hour