Convert numbers to Roman numerals or Roman numerals back to numbers, instantly.
Convert any number into Roman numerals, or decode a Roman numeral back into its standard numeric value — following the standard subtractive notation rules (e.g. IV for 4, not IIII).
Example: 1994 converts to MCMXCIV — enter a number or a Roman numeral in either field to convert instantly.
Roman numerals use combinations of letters (I, V, X, L, C, D, M) representing fixed values, with smaller values placed before larger ones subtracted from the total (like IV for 4). This converter supports numbers from 1 to 3999, the standard range for classical Roman numeral notation.
Roman numerals use combinations of letters (I, V, X, L, C, D, M) representing fixed values, with smaller values placed before larger ones subtracted from the total, like IV for 4.
It supports numbers from 1 to 3999, the standard range for classical Roman numeral notation.
Yes — the converter works in both directions: enter a number to get Roman numerals, or enter Roman numerals to get the standard number.
The basic letters are I, V, X, L, C, D, and M, each representing a fixed value that combines to form larger numbers.
Yes — results update as you type, with no need to click a separate "convert" button.