kilometers-per-hour to miles-per-hour converter
Convert Kilometer/hour (km/h) to Mile/hour (mph) for school, work, travel or projects. Enter any finite value, reverse the units, copy the result and keep the calculation on your device.
🔒 100% private — files never leave your browser
Result
—
Formula
1 km/h = 0.62137119 mph
The converter uses the defined base unit for Speed; temperature pairs use an offset formula. Values are rounded only for display.
Worked example
For example, 5 km/h = 3.10685596 mph. Try another value above to calculate it locally.
Common values
Related conversions
miles-per-hour to kilometers-per-hour converter →How to use the kilometers-per-hour to miles-per-hour
- 1 Enter a value in Kilometer/hour (km/h).
- 2 Check the Kilometer/hour (km/h) to Mile/hour (mph) formula and common values table.
- 3 Copy the result or swap the units for the reverse conversion.
Frequently asked questions
What does the kilometers-per-hour to miles-per-hour converter calculate?
Kilometer/hour (km/h) values are converted to Mile/hour (mph) using the selected unit definition. Temperature uses its offset formula rather than a simple multiplication.
Does this converter upload my value?
No. The calculation runs locally in your browser, and the value is not sent to a server.
Can I convert the result back?
Yes. Use the reverse conversion link or swap the units in the converter.