Roman Numeral Converter

About Roman Numerals

Roman numerals are a number system that originated in ancient Rome and remained the usual way of writing numbers throughout Europe well into the Late Middle Ages. Numbers are represented by combinations of letters from the Latin alphabet.

Basic Roman Numeral Symbols

How It Works

Roman numerals follow these basic rules:

• When a smaller number comes before a larger number, it means subtraction (e.g., IV = 4)
• When a smaller number comes after a larger number, it means addition (e.g., VI = 6)
• The same symbol cannot be used more than three times in succession

Common Examples