Roman Numeral Converter
Convert numbers to Roman numerals and Roman numerals back to numbers.
How it works
Type any number from 1 to 3,999 to instantly convert it to Roman numerals, or enter a Roman numeral string to convert it back to a decimal number. Validates the input and handles edge cases correctly.
Why use this tool?
Used for chapter numbering, clock faces, copyright years, outlines, and formal documents. Also widely used by students for history, math, and classical literature assignments.