Kilometers per Hour to Miles per Hour
Convert kilometers per hour to miles per hour for speed limits, driving, road signs, vehicle dashboards, and travel planning.
How to convert km/h to mph
To convert a value from kilometers per hour (km/h) to miles per hour (mph), enter the number in the converter above. Use the swap control if you need the reverse direction.
x is the source value in km/h; y is the result in mph.
Popular conversions
Quick answers for common km/h to mph values are available from the related conversion pages.
Use the related tools section for fixed-value conversions and the reverse direction.
Common conversion table
Quick reference table for common km/h to mph values:
| km/h | mph |
|---|---|
| 1 | 0.621371 |
| 5 | 3.106856 |
| 10 | 6.213712 |
| 50 | 31.06856 |
| 100 | 62.137119 |
| 1,000 | 621.371192 |
About kilometers per hour
Kilometer per hour (km/h) — One kilometer per hour equals exactly 1,000 meters per 3,600 seconds, or 0.2777777778 meters per second.
Common uses: Kilometers per hour are used for road speed limits, vehicle dashboards, cycling, running, weather, transport, and travel planning in most countries.
About miles per hour
Mile per hour (mph) — One mile per hour equals exactly 0.44704 meters per second, because one international mile is 1,609.344 meters.
Common uses: Miles per hour are used for speed limits, driving, road signs, vehicle dashboards, and travel planning in the United States and the United Kingdom.
Frequently Asked Questions
Related Tools
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