All tools / Unit Converter100 miles to km100 miles = 160.9344 kmFormula1 miles = 1.609344 km, so 100 × 1.609344 = 160.9344Need another value? Use the full Unit ConverterOther miles → km conversions1 miles → km2 miles → km3 miles → km5 miles → km10 miles → km15 miles → kmReverse conversion100 km → milesRelated conversions1 km → miles1 cm → inches1 inches → cm1 cm → feet1 feet → cm1 meters → feet