All tools / Unit Converter2 mph to kmh2 mph = 3.218688 kmhFormula1 mph = 1.609344 kmh, so 2 × 1.609344 = 3.218688Need another value? Use the full Unit ConverterOther mph → kmh conversions1 mph → kmh3 mph → kmh5 mph → kmh10 mph → kmh15 mph → kmh20 mph → kmhReverse conversion2 kmh → mphRelated conversions1 kmh → mph1 mps → kmh1 knots → kmh