Roman Numeral Converter

What is a Roman Numeral Converter?

A Roman numeral converter translates between Arabic numbers and Roman numerals. Fontily's works both ways — turn a number from 1 to 3999 into numerals like MMXXVI, or decode a numeral back into a number — instantly and accurately.

Features

• Two-way conversion — number to Roman and back.
• Supports 1 to 3999 with correct subtractive notation.
• Instant results with clear error messages.
• One-click copy.
• Free and private — runs in your browser.

How to Use the Roman Numeral Converter

1. Type a number (1–3999) or a Roman numeral.
2. The converted value appears immediately.
3. Copy the result for your design, date or document.

Benefits

Roman numerals appear on clocks, monuments, book chapters and tattoos, but converting them by hand is error-prone. A converter gives you the correct numeral every time, perfect for commemorating dates and creating designs.

Use Cases

• Year and date designs (anniversaries, tattoos).
• Chapter and section numbering.
• Clock and monument lettering.
• Learning Roman numerals.

Conclusion

Fontily's Roman Numeral Converter turns numbers into Roman numerals and back in an instant. Enter a value above and copy the result — free and accurate.