Roman Numeral Converter

About Roman Numerals

Roman numerals are an ancient number system developed in Rome and used throughout the Roman Empire. Instead of positional digits like in Arabic numerals (0–9), Roman numerals use combinations of letters from the Latin alphabet (I, V, X, L, C, D, M).

Basic Symbols:

• I = 1
• V = 5
• X = 10
• L = 50
• C = 100
• D = 500
• M = 1000

Numbers are formed by combining these letters and applying rules of addition and subtraction. For example, IV = 4 (5 - 1), IX = 9 (10 - 1), XL = 40 (50 - 10).

This converter helps you easily switch between Roman numerals and Arabic numbers. It supports values up to 3999 (MMMCMXCIX).