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Roman Numeral Converter

Convert between numbers and Roman numerals (1 - 3999).

Reference Table

1I
4IV
5V
9IX
10X
40XL
50L
90XC
100C
400CD
500D
900CM
1000M

How It Works

Roman numerals are formed by combining symbols: I (1), V (5), X (10), L (50), C (100), D (500), M (1000). Smaller values before larger ones are subtracted (IV = 4), otherwise added (VI = 6).

Roman Numeral Converter - Numbers to Roman Numerals | Tookio