All tools / Unit Converter3 inches to cm3 inches = 7.62 cmFormula1 inches = 2.54 cm, so 3 × 2.54 = 7.62Need another value? Use the full Unit ConverterOther inches → cm conversions1 inches → cm2 inches → cm5 inches → cm10 inches → cm15 inches → cm20 inches → cmReverse conversion3 cm → inchesRelated conversions1 km → miles1 miles → km1 cm → inches1 cm → feet1 feet → cm1 meters → feet