Roman Numeral Converter
Convert between Arabic numbers and Roman numerals (1 to 3999).
Range
Standard Roman numerals support 1 to 3999. We use the additive/subtractive notation: M, CM, D, CD, C, XC, L, XL, X, IX, V, IV, I.
Frequently Asked Questions
Is the Roman Numeral Converter free to use?
Yes, the Roman Numeral Converter is 100% free to use. There are no subscriptions, no sign-ups, and no hidden fees.
Is my data safe when using the Roman Numeral Converter?
Absolutely. All calculations performed by the Roman Numeral Converter happen locally in your web browser. We do not store, track, or transmit your inputs or results to any server.
How accurate is the Roman Numeral Converter?
Our Roman Numeral Converter uses industry-standard formulas and methodology. You can view the exact formula and calculation logic used in the methodology section above to verify the math yourself.
Can I use the Roman Numeral Converter on my mobile phone?
Yes! The Roman Numeral Converter is fully responsive and works seamlessly on all devices including smartphones, tablets, and desktop computers.