Roman Numeral Converter

Convert between numbers and Roman numerals, both directions.

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MMXXVI = 1000 + 1000 + 10 + 10 + 5 + 1 = 2026
SymbolIVXLCDM
Value1510501005001000

About the Roman Numeral Converter

Convert numbers (1–3999) to Roman numerals and back. Includes a live breakdown showing how the numeral is composed, plus a quick-reference chart.

Handy for dates on documents and monuments, outlines, clock faces, and movie credits (MMXXVI = 2026).

How to use the Roman Numeral Converter

  1. Enter a number or a Roman numeral.
  2. The conversion appears instantly with a symbol breakdown.
  3. Use the reference chart for the basic symbols.

Common uses

Reading years in credits and cornerstones Formatting outlines and lists Homework and puzzles

Frequently asked questions

Why only up to 3999?
Standard Roman notation has no symbol beyond M (1000) without overline notation, so 3999 (MMMCMXCIX) is the conventional maximum.
How does subtractive notation work?
A smaller symbol before a larger one subtracts: IV = 4, IX = 9, XL = 40, CM = 900.

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