计算器
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).