kilometre per hour to mile per hour
Live kilometre per hour (km/h) to mile per hour (mph) converter. Plus a 10-value reference table and FAQs.
Conversion table
Ten sample values from kilometre per hour to mile per hour. Use the converter above for arbitrary values.
| kilometre per hour (km/h) | → | mile per hour (mph) |
|---|---|---|
| 0.001 km/h | → | 0.000621 mph |
| 0.01 km/h | → | 0.006214 mph |
| 0.1 km/h | → | 0.062137 mph |
| 0.5 km/h | → | 0.310686 mph |
| 1 km/h | → | 0.621371 mph |
| 2 km/h | → | 1.242742 mph |
| 5 km/h | → | 3.106856 mph |
| 10 km/h | → | 6.213712 mph |
| 100 km/h | → | 62.137119 mph |
| 1,000 km/h | → | 621.371192 mph |
About the kilometre per hour
1 km per hour. International road speed.
About the mile per hour
US and UK road speed.
How kilometre per hour to mile per hour conversion works
Both units belong to Speed. Unitbox first expresses the input in the category reference unit (m/s), then expresses that same quantity in mile per hour.
The right unit depends on the convention used by your industry, country, instrument, or source document.
Unit definitions and conversion factors are maintained in the Unitbox methodology. Last reviewed with the current conversion dataset.
Frequently asked questions
Frequently Asked Questions
How do I convert kilometre per hour to mile per hour?
Multiply the kilometre per hour value by 0.621371 to get it in mile per hour. For example, 10 km/h = 6.2137 mph.
What is 1 km/h in mph?
1 km/h = 0.621371 mph.
What is 100 km/h in mph?
100 km/h = 62.1371 mph.
What is the formula?
Linear: multiply by 0.621371 (the unit factor ratio).
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