All tools / Unit Converter30 mph to kmh30 mph = 48.28032 kmhFormula1 mph = 1.609344 kmh, so 30 × 1.609344 = 48.28032Need another value? Use the full Unit ConverterOther mph → kmh conversions1 mph → kmh2 mph → kmh3 mph → kmh5 mph → kmh10 mph → kmh15 mph → kmhReverse conversion30 kmh → mphRelated conversions1 kmh → mph1 mps → kmh1 knots → kmh