File & Data ConvertersPrivate by design
Roman Numeral Converter
Enter a number or a Roman numeral to convert it to the other format instantly.
How to use this tool
- 1Enter a number (1-3999) or a Roman numeral.
- 2See the converted result instantly.
Frequently asked questions
What's the largest number this supports?+
Standard Roman numerals support 1 through 3999 without special extended notation.
Related tools
Keep the boring tools boring.
If this saved you five minutes of nonsense, you can help keep the free tools running.
Buy the toolbox a coffee