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Calculators

Roman Numeral Converter

Convert numbers to Roman numerals and Roman numerals back to numbers — with step-by-step breakdown

Result
MMXXVI

Breakdown

MM2 × 1000 = 2000
XX2 × 10 = 20
V1 × 5 = 5
I1 × 1 = 1
2×M(1000) + 2×X(10) + 1×V(5) + 1×I(1) = 2026
Quick examples

Roman numeral reference

Roman numeral rules:

• Symbols are generally written from largest to smallest (left to right).

• A smaller symbol before a larger one is subtracted (e.g. IV = 4, IX = 9).

• Only I, X, and C can be used as subtractive prefixes.

• The range supported is 1–3999 (standard notation).

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Roman Numeral Converter — Free Online Tool | FreeTool