All tools / Unit Converter12 inches to cm12 inches = 30.48 cmFormula1 inches = 2.54 cm, so 12 × 2.54 = 30.48Need another value? Use the full Unit ConverterOther inches → cm conversions1 inches → cm2 inches → cm3 inches → cm4 inches → cm5 inches → cm6 inches → cmReverse conversion12 cm → inchesRelated conversions1 km → miles1 miles → km1 cm → inches1 cm → feet1 feet → cm1 meters → feet