Roman numeral converter

Convert numbers (1-3999) to Roman numerals and Roman numerals back to numbers.

Value*

Result

Run the tool to see results here.

About Roman numeral converter

Roman numeral converter is a free online calculator tool. Convert numbers (1-3999) to Roman numerals and Roman numerals back to numbers.

Enter your input, adjust the options and run it. The result appears right next to the form, is never stored, and you can copy or save it in one click. No account is needed.

You may also know this as: roman-numerals.

How to use Roman numeral converter

Type or paste your input into the form.
There is nothing to configure, the defaults work for most inputs.
Press Run, or use Ctrl/⌘ + Enter.
Copy or save the result from the panel on the right.

Roman numeral converter FAQ

What does Roman numeral converter do?

Convert numbers (1-3999) to Roman numerals and Roman numerals back to numbers.

Is Roman numeral converter free to use?

Yes. Roman numeral converter is free, with no sign-up or account required.

Is my data safe?

Results are never stored. See our privacy policy for details.

Is Roman numeral converter also called “roman-numerals”?

Yes. “roman-numerals” is another common name for this task, so you’re in the right place.

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