Convert between Roman numerals and Arabo numbers instantly. Translate any integer (1–3999) a Roman numerals and vice versa. Gratuito, fast, and 100% client-side.
A fast, free online tool a convert between Roman numerals and modern Arabo numbers. Roman numerals use combinations of letters from the Latin alphabet: I (1), V (5), X (10), L (50), C (100), D (500), and M (1000). This converter supports numbers from 1 a 3999, covering the standard range used in most applications.
This converter supports numbers from 1 a 3999 (I a MMMCMXCIX). This range covers the standard Roman numeral system using subtractive notation.
The seven basic symbols are: I (1), V (5), X (10), L (50), C (100), D (500), and M (1000). Numeros are formed by combining these symbols, with subtractive notation for 4 (IV), 9 (IX), 40 (XL), 90 (XC), 400 (CD), and 900 (CM).
No. All conversions happen entirely within your browser. We do not store, transmit, or log any of your input or output.