Learn how to convert CCXX from roman numerals to arabic numerals, and a lot more, at roman-numerals .info We would like to show you a description here but the site won’t allow us. In Roman numerals, CCXX represents the number 220 . To convert roman numerals to numbers, we split the roman numeral into single letters, write their numerical value and add/subtract them. CCXX in Roman Numerals can be written in numbers by combining the value of each Roman numeral, i.e., CCXX = CC + XX = 200 + 20 = 220 . The higher Roman numerals precede the lower numerals resulting in the correct translation of CCXX Roman Numerals.