Kilometer per hour to Mile per hourConverter

Instantly convert Kilometer per hour (km/h) to Mile per hour (mph). Free, accurate, and easy to use.

km/h
mph
1 km/h = 0.62137169 mph

How to Convert Kilometer per hour to Mile per hour

To convert Kilometer per hour (km/h) to Mile per hour (mph), multiply your value by 0.62137169.

mph = km/h × 0.62137169

Example: 5 km/h × 0.62137169 = 3.10685845 mph

What is a Kilometer per hour?

The kilometer per hour (km/h) is the most widely used unit for road vehicle speeds outside the United States. Equal to 1/3.6 meters per second, it is used for speed limits, railway timetables, and meteorological wind speeds in metric countries. Typical urban speed limits are 50 km/h, while highway limits range from 100 to 130 km/h. One km/h equals approximately 0.621 miles per hour.

What is a Mile per hour?

The mile per hour (mph) is the standard speed unit in the United States, United Kingdom, and a few other territories. Equal to approximately 1.609 km/h or 0.447 m/s, it appears on road signs, vehicle speedometers, and weather reports. US interstate highway speed limits are typically 65–75 mph. A commercial airliner cruises at roughly 550–600 mph (880–965 km/h) at altitude.

Kilometer per hour to Mile per hour Conversion Table

Kilometer per hour (km/h)Mile per hour (mph)
0.001 km/h0.00062137 mph
0.01 km/h0.00621372 mph
0.1 km/h0.06213717 mph
0.5 km/h0.31068584 mph
1 km/h0.62137169 mph
2 km/h1.24274338 mph
5 km/h3.10685845 mph
10 km/h6.21371689 mph
20 km/h12.42743379 mph
50 km/h31.06858447 mph
100 km/h62.13716893 mph
200 km/h124.27433787 mph
500 km/h310.68584467 mph
1000 km/h621.37168933 mph
5000 km/h3106.85844667 mph
10000 km/h6213.71689334 mph
50000 km/h31068.58446671 mph
100000 km/h62137.16893343 mph
1000000 km/h621371.68933429 mph
1000000000 km/h621371689.3342878 mph

Frequently Asked Questions

How do I convert Kilometer per hour to Mile per hour?

Multiply the Kilometer per hour value by 0.62137169. Formula: mph = km/h × 0.62137169. Example: 10 km/h = 6.21371689 mph.

How many Mile per hour are in one Kilometer per hour?

One Kilometer per hour (km/h) equals 0.62137169 Mile per hour (mph).

How many Kilometer per hour are in one Mile per hour?

One Mile per hour (mph) equals 1.60934271 Kilometer per hour (km/h).

What is the exact conversion factor from Kilometer per hour to Mile per hour?

The conversion factor is 0.62137169. Multiply any km/h value by this number to get mph. For the reverse, multiply by 1.60934271.

How do I convert Mile per hour back to Kilometer per hour?

Divide by 0.62137169, or equivalently multiply by 1.60934271. Formula: km/h = mph ÷ 0.62137169.

Is the Kilometer per hour-to-Mile per hour conversion internationally standardized?

Yes. Both units are defined by international standards (SI or the international yard/pound agreement), so the conversion factor 0.62137169 is exact and universally agreed upon.