Kilometres per hour to miles per hour
Multiply kilometres per hour by 0.621371 to get miles per hour.
60 km/h = 37.2823 mph
How to convert kilometres per hour to miles per hour
The mile per hour is miles travelled per hour, exactly 1.609344 km/h. The kilometre per hour is kilometres travelled per hour, the metric speed unit for vehicles.
Worked example — 60 km/h: 60 × 0.621371 = 37.2823 mph.
Kilometres per hour to miles per hour table
| Kilometres per hour | Miles per hour |
|---|---|
| 1 km/h | 0.621371 mph |
| 10 km/h | 6.2137 mph |
| 30 km/h | 18.6411 mph |
| 50 km/h | 31.0686 mph |
| 60 km/h | 37.2823 mph |
| 80 km/h | 49.7097 mph |
| 100 km/h | 62.1371 mph |
| 120 km/h | 74.5645 mph |
| 130 km/h | 80.7783 mph |
Reverse and related
About kilometres per hour and miles per hour
Kilometre per hour (km/h)
1 km/h = 0.621371 mphDefinition. Kilometres travelled per hour, the metric speed unit for vehicles
History and origin
The kilometre per hour combines the metric kilometre with the hour, and became the standard speed unit as countries adopted the metric system and built road networks. It equals exactly one thousand metres per hour.
Current use
Kilometres per hour is the speed unit on car speedometers and road signs across most of the world.
Source: NIST Handbook 44, Appendix C (Tables of Equivalents — international nautical mile); speeds derived from the exact mile, foot and hour
Mile per hour (mph)
1 mph = 1.6093 km/hDefinition. Miles travelled per hour, exactly 1.609344 km/h
History and origin
Miles per hour grew out of the English mile and the hour as roads and railways spread in the nineteenth century. It equals exactly 1.609344 kilometres per hour.
Current use
Miles per hour is the speed unit for road traffic in the United States and United Kingdom, and is common for running pace.
Source: NIST Handbook 44, Appendix C (Tables of Equivalents — international nautical mile); speeds derived from the exact mile, foot and hour
Where people use this
Kilometres per hour: vehicle speed outside the US, speed limits. Miles per hour: vehicle speed in the US and UK, speed limits, running pace. A 100 km/h limit is about 62 mph.
Every value is carried to full double precision; the display is rounded.
Both units are defined in NIST Handbook 44, Appendix C (Tables of Equivalents — international nautical mile); speeds derived from the exact mile, foot and hour.
Questions people ask
How many mph is 100 km/h?
A 100 km/h limit is about 62 mph, and 120 km/h is about 75 mph.
How many mph is 1 km/h?
One kilometre per hour is about 0.621 mph. To convert km/h to mph, multiply by 0.6214.
How do you convert km/h to mph?
Multiply the km/h by 0.6214, so 50 km/h is about 31 mph. A quick estimate is to take about five eighths.
How many mph is 130 km/h?
130 km/h is about 81 mph, and 90 km/h is about 56 mph.