Roman Numeral Conversions

Convert between Roman numerals and decimal numbers from 1 to 3999.
Instant results for dates, Super Bowl numbers, clock faces, and more.

Roman Numeral Converter

Convert between Roman numerals and decimal numbers (1-3999) instantly. Type in either field and the other updates automatically.

Embed This Calculator

Copy the code below and paste it into your website or blog.
The calculator will work directly on your page.