Convert km/h to mph
Type the number of kilometers per hour that you wish to convert to miles per hour.
How to Convert Kilometers per Hour to Miles per Hour
The kilometer per hour and mile per hour are both units of speed. By definition, 1 mile per hour equals exactly 1.6093439987 kilometers per hour. This means to convert kilometers per hour to miles per hour, you divide by 1.6093439987.
Formula
Step-by-Step Example
Convert 5 km/h to miles per hour:
We need to convert kilometers per hour to miles per hour
Since 1 mph = 1.6093439987 km/h, divide by 1.6093439987
5 ÷ 1.6093439987 = 3.1068559637
5 km/h = 3.1068559637 mph
Kilometer per Hour to Mile per Hour Conversion Table
Quick reference table for common kilometer per hour to mile per hour conversions. Click any value for detailed calculation.
| Kilometers per Hour (km/h) | Miles per Hour (mph) |
|---|---|
| 1 km/h | 0.6213711927 mph |
| 2 km/h | 1.2427423855 mph |
| 5 km/h | 3.1068559637 mph |
| 10 km/h | 6.2137119273 mph |
| 15 km/h | 9.320567891 mph |
| 20 km/h | 12.427423855 mph |
| 25 km/h | 15.534279818 mph |
| 50 km/h | 31.068559637 mph |
| 100 km/h | 62.137119273 mph |
About These Units
Kilometer per Hour (km/h)
Kilometers per hour (km/h or kph) is the standard speed unit for vehicles, speed limits, and weather in most countries worldwide. To convert km/h to mph, multiply by 0.621. Common speeds: walking 5 km/h, city driving 50 km/h, highway 120 km/h.
Mile per Hour (mph)
Miles per hour (mph) is the standard speed unit for vehicles and speed limits in the United States, United Kingdom, and a few other countries. To convert mph to km/h, multiply by 1.609. Common speeds: walking 3 mph, city driving 30 mph, highway 65-75 mph.
Frequently Asked Questions
How do I convert kilometers per hour to miles per hour?
To convert kilometers per hour to miles per hour, divide the value by 1.6093439987. For example, 10 km/h = 6.2137119273 mph.
How many miles per hour are in 1 kilometer per hour?
1 kilometer per hour equals 0.6213711927 miles per hour.
What is the formula for kilometers per hour to miles per hour?
The formula is: mph = km/h ÷ 1.6093439987.