Roman Numeral Converter

What is the Roman Numeral Converter?

Convert numbers 1–3999 into Roman numerals. Roman numerals still appear on clocks, book chapters, film credits, monuments and event names like the Super Bowl.

How to use the Roman Numeral Converter

1. Enter your number.
2. Results update automatically as you type; you can also press Calculate.
3. Read the output: roman numeral.
4. Use the 📊 chart to see the result visually, then copy or share it.

Formula and method

Worked example

With number = 2,026, the Roman Numeral Converter returns roman numeral: MMXXVI.

Where the Roman Numeral Converter helps in real life

You are writing a book and want chapter headings in Roman numerals. Converting 14 gives XIV, so you do not have to work out the subtraction rules.

You want a tattoo or engraving with a meaningful year. Converting 1994 gives MCMXCIV.

Common mistakes to avoid

• Writing IIII instead of IV for 4.
• Using subtraction pairs that are not allowed, such as IC for 99.
• Repeating V, L or D, which never repeat.
• Expecting numbers above 3,999 in standard form.

💡 Practical tip: IV means 4 because I placed before V is subtracted from it.

Tips for better results

• Learn the six subtraction pairs: IV, IX, XL, XC, CD and CM.
• Double-check years before engraving or printing.
• Use the reverse converter to verify.

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