All tools / Unit Converter3 miles to km3 miles = 4.828032 kmFormula1 miles = 1.609344 km, so 3 × 1.609344 = 4.828032Need another value? Use the full Unit ConverterOther miles → km conversions1 miles → km2 miles → km5 miles → km10 miles → km15 miles → km20 miles → kmReverse conversion3 km → milesRelated conversions1 km → miles1 cm → inches1 inches → cm1 cm → feet1 feet → cm1 meters → feet