Roman Numeral Converter
Convert numbers to Roman numerals and Roman numerals back to numbers.
Result
MMXXVI
Roman Numeral Converter for Numbers 1 to 3999
Convert regular numbers to Roman numerals and Roman numerals back to numbers. This tool supports standard Roman numeral notation from 1 to 3999, including subtractive forms such as IV, IX, XL, XC, CD, and CM.
- Convert dates, chapter numbers, outlines, clock numerals, and historical references.
- Validate Roman numerals before using them in documents or designs.
- Copy the converted result instantly.
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Frequently Asked Questions
Have a question? We’ve got answers to the most common questions about using our tools.
What number range is supported?+
The standard Roman numeral range supported here is 1 through 3999.
Why is 4 written as IV?+
Roman numerals use subtractive notation, so IV means one before five.
Can I convert lowercase Roman numerals?+
Yes. Lowercase input is accepted and normalized automatically.