Roman Numeral Converter

Instantly convert standard numbers to Roman numerals and back. Simply type in either field to see the live conversion, perfect for dates, outlines, and historical numbers.

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Number ↔ Roman Converter

How to Use the Converter

The conversion is bidirectional and happens in real-time.

  1. To Convert a Number to Roman: Type a number between 1 and 3999 in the "Number" field. The "Roman Numeral" field will update as you type.
  2. To Convert a Roman Numeral to a Number: Type a valid Roman numeral (e.g., MCMLXXXIV) in the "Roman Numeral" field. The "Number" field will update instantly.

Where Roman Numerals Are Used Today

Clock Faces

Many analog clocks use Roman numerals for a classic, traditional look.

Copyright Dates

Movie and television show credits often display the year of production in Roman numerals.

Monarchs and Popes

Used to distinguish rulers with the same name, such as Queen Elizabeth II or Pope John Paul II.

Formal Outlines

Often used for main sections in outlines, documents, and book chapter numbering.

Frequently Asked Questions

Translate between numbers and Roman numerals.

Whether for a history project, a tattoo idea, or a movie credit, get the correct conversion instantly.

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