Speed Tools
MPH to KMH Converter
Convert speed metrics between Miles per Hour (mph) and Kilometers per Hour (km/h) easily.
↔
Speed Conversion Guide (MPH vs KM/H)
Automotive speedometers, sports performance statistics, and traffic velocity limits vary by country. The US and UK measure speed in miles per hour (mph), whereas international standard roads use kilometers per hour (km/h).
Conversion Factor
- $1\text{ mph} = 1.609344\text{ km/h}$
- $1\text{ km/h} = 0.621371\text{ mph}$