What is the Km/h to mph Converter?
Convert kilometres per hour to miles per hour instantly, with the conversion factor and a table of other units.
Results update as you type, and nothing you enter leaves your device.
How it is calculated
miles per hour = kilometres per hour × 0.62137119
How to use it
- Fill in the fields at the top of the page.
- Read the result in the results panel. It updates as you type.
- Change any value to compare scenarios, or use Share to send the result as a link.
Common questions
How do I convert kilometres per hour to miles per hour?
Multiply the value in kilometres per hour by 0.62137119. For example, 10 kilometres per hour = 6.2137 miles per hour.
How do I convert miles per hour back to kilometres per hour?
Divide by 0.62137119, or press the swap button between the two unit boxes.
What formula does the Km/h to mph Converter use?
It uses: miles per hour = kilometres per hour × 0.62137119.
Is the Km/h to mph Converter free, and is my data stored?
It is free with no sign-up. The calculation runs in your browser, so the values you enter are not sent to or stored on our server.