Roman Numeral Converter
Convert whole numbers (1–3999) to Roman numerals, or convert Roman numerals back to numbers.
Number → Roman numeral
Roman numeral:
Roman numeral → Number
Number:
Roman numeral symbols
I = 1, V = 5, X = 10, L = 50, C = 100, D = 500, M = 1000. A smaller symbol before a larger one is subtracted (e.g. IV = 4, IX = 9, XL = 40, CM = 900).