Math

Roman Numeral Converter

Convert Roman numerals to numbers and numbers to Roman numerals.

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Calculate Roman Numeral Converter

XIV = 14 Sample Roman numeral conversion

Rule: Roman numerals use I, V, X, L, C, D and M. Convematik validates canonical numerals before returning a value.

Use the public JSON endpoint with these query parameters.

GET https://api.convematik.com/roman?roman=XIV

{
  "roman": "XIV",
  "integer": 14
}

What does the Roman Numeral Converter do?

Convert Roman numerals to numbers and numbers to Roman numerals.

Is the calculation available through the API?

Yes. The same calculation is exposed by the Convematik API for programmatic use.

Can I use it without signing in?

Yes. The public calculator is free and does not require an account.