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Roman Numeral Converter

Convert numbers to Roman numerals and back.

Roman numeral

MMXXVI

M (1000) + M (1000) + X (10) + X (10) + V (5) + I (1)

How to use

  1. 1Type a number (1–3999) to see it in Roman numerals.
  2. 2Or type Roman numerals like MMXXVI to get the number.
  3. 3See the breakdown of how the numeral is built.
  4. 4Copy the result.

Frequently asked questions

What are the Roman numeral letters?

I = 1, V = 5, X = 10, L = 50, C = 100, D = 500 and M = 1000.

Why is 4 written IV and not IIII?

A smaller numeral before a larger one is subtracted: IV = 5 − 1 = 4, IX = 9, XL = 40, XC = 90, CD = 400 and CM = 900.

Why only up to 3999?

Standard Roman numerals can repeat M at most three times, so 3999 (MMMCMXCIX) is the largest.

How do I write this year in Roman numerals?

2026 is MMXXVI: MM (2000) + XX (20) + VI (6).

Is there a Roman numeral for zero?

No. The Romans had no numeral for zero.

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