Roman Numerals Converter
Convert between Arabic and Roman numerals for integers 1-3999, handy for chapter numbers, clocks and monument years.
How to use Roman Numerals Converter
- Enter an Arabic number (e.g. 2024) or Roman numeral (e.g. MMXXIV)
- Click to Roman to get the Roman form
- Click to Number to convert back
Features
- Everything runs in your browser - pasted content never leaves your device
- No sign-up or login; open the page and use it, equally handy on mobile
- All processing is UTF-8 byte based, so Chinese text stays clean
FAQ
- Is this tool free?
- Completely free, no sign-up or login, unlimited uses.
- Will my data be uploaded?
- No. All computation runs locally in your browser; your input never leaves your device.
- How do I use it?
- Fill in the box above, click the matching button to get the result, then click Copy to take it away.
- Why only 1-3999?
- Traditional Roman numerals have no standard zero or form beyond 3999; this tool follows the common rule and supports 1-3999.