Roman Numeral Converter
Convert any number to Roman numerals or decode Roman numerals back to numbers instantly.
Supports 1 to 3999
How to Use
- 1
Choose the conversion direction: number to Roman or Roman to number
- 2
Type your number or Roman numeral in the input field
- 3
The result appears instantly below
Frequently Asked Questions
What numbers are supported?
Numbers from 1 to 3999 (standard Roman numeral range).
Can I convert a date to Roman numerals?
Yes — convert each part of the date separately (day, month, year).
Are Roman numerals case-sensitive?
No, the tool accepts both uppercase and lowercase.
Is this free?
Yes, completely free and no signup required.
Convert Roman numerals both ways
This converter turns ordinary numbers into Roman numerals (2024 becomes MMXXIV) and decodes Roman numerals back into numbers. It handles the rules of subtractive notation — like IV for four and IX for nine — so you do not have to.
Type in either form and the conversion appears instantly.
Where Roman numerals show up
- Reading clock faces, book chapters and movie copyright years.
- Naming events like Super Bowls or monarchs (Henry VIII).
- Tattoos and dates where Roman numerals add a classic look.
- For other formats, try number to words or the number base converter.
Accurate and instant
Conversion runs in your browser using the standard Roman numeral rules, so results are correct and immediate.