Convert
Roman Numeral Converter
Convert numbers to Roman numerals and back.
Converts locally in your browser. Free, nothing is uploaded.
About this tool
Free roman numeral converter tool. Convert numbers to Roman numerals and back. No signup, nothing uploaded.
Frequently asked questions
Is my data sent to a server?
No. The conversion happens entirely inside your browser.
What formats are supported?
The formats named in the title; malformed input returns a clear error.
Can I paste large files?
Yes for reasonable sizes, limited by browser memory.
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