๐ Automotive
MPH to KPH Converter
One mile is exactly 1.609344 kilometres, so the conversion is a fixed multiplication rather than an approximation. Speed limit signs change at the border, and mental arithmetic is often off by several km/h at highway speeds.
How it works
Speed
Convert
Converted speed
Converted speed
Speed
Reference
Frequently asked questions
How do I use the MPH to KPH Converter?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.