How to use the Roman Numeral Converter
- 1Type a number to get the Roman numeral.
- 2Or type a Roman numeral to get the number.
Supported formats and limits
- Range 1–3999 using standard subtractive notation.
- Invalid numerals like IIII or VX are rejected.
Common uses
- Homework and exams.
- Reading dates on buildings and film credits.
Frequently asked questions
Why only up to 3999?
Standard Roman numerals have no symbol above M (1000).