Roman Numeral Converter

Convert Arabic numbers (decimals) to Roman numerals and vice-versa with step-by-step conversion charts.

\text{I} = 1, \text{V} = 5, \text{X} = 10, \text{L} = 50, \text{C} = 100, \text{D} = 500, \text{M} = 1000

Result

Step-by-Step Calculation & Explanation

The Roman numeral system uses letters from the Latin alphabet to represent values. If a smaller numeral is placed before a larger one, it is subtracted (e.g. IV = 4, IX = 9); otherwise, they are added together (e.g. VI = 6, XI = 11).