All tools / Unit Converter300 km to m300 km = 300,000 mFormula1 km = 1,000 m, so 300 × 1,000 = 300,000Need another value? Use the full Unit ConverterOther km → m conversionskmm1 km1,000 m2 km2,000 m3 km3,000 m4 km4,000 m5 km5,000 m6 km6,000 mRelated conversions1 km → miles1 miles → km1 cm → inches1 inches → cm1 cm → feet1 feet → cm