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Roman Numeral Converter

Convert numbers to Roman numerals and back. Free, private and instant.

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How to use the Roman Numeral Converter

  1. Enter your values in the fields above.
  2. The result updates automatically as you type.
  3. Copy or note the figures you need.

About this tool

Enter a number from 1 to 3999 or a Roman numeral such as MMXXVI to convert between them.

Roman Numeral Converter is part of ToolStack Hub's Unit & Number Converters. It runs entirely in your browser, which keeps your data private and makes results instant. There is nothing to install, no account to create and no usage limit.

Frequently asked questions

Is the Roman Numeral Converter free?

Yes. Roman Numeral Converter is completely free with no sign-up, limits or watermarks.

Is my data private when I use the Roman Numeral Converter?

Yes. It runs in your browser, so your input is not uploaded to our servers.

Does it work on mobile?

Yes. ToolStack Hub tools work on phones, tablets and desktop browsers.

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