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Roman Numeral Converter
Convert numbers to Roman numerals and vice versa instantly.
⭐ Used by 5,670 people

The Roman Numeral Converter converts numbers to Roman numerals and vice versa. Works for numbers from 1 to 3,999,999!

Roman Numeral Symbols

SymbolValue
I1
V5
X10
L50
C100
D500
M1,000

Rules of Roman Numerals

  • Symbols placed after larger value = addition (VI = 6)
  • Symbols placed before larger value = subtraction (IV = 4)
  • Same symbol max 3 times in a row (III = 3, not IIII)

Common Examples

2024 = MMXXIV
1999 = MCMXCIX
2026 = MMXXVI
100 = C
500 = D
📖 Complete Guide
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Frequently Asked Questions

How do Roman numerals work?

Roman numerals use letters where I is 1, V is 5, X is 10, L is 50, C is 100, D is 500, and M is 1000, combined by adding or subtracting to form numbers.

How do I convert a number to Roman numerals?

Break the number into thousands, hundreds, tens, and units and represent each with the matching symbols. The converter does this instantly in both directions.

What is the largest standard Roman numeral?

Using standard symbols, numbers up to 3999 are written with the basic letters. Larger numbers traditionally use bars over symbols to multiply their value by a thousand.