Roman Numeral Converter
Convert between Arabic numbers and Roman numerals (1 – 3999).
Result
MMXXVI = 2026
How Roman Numerals Work
Roman numerals use seven letters: I (1), V (5), X (10), L (50), C (100), D (500), M (1000). Smaller numerals before larger ones are subtracted (IV = 4, IX = 9, XC = 90, CM = 900).
FAQ
What's the maximum?
3999 (MMMCMXCIX). Standard Roman numerals don't represent 4000+.
Is zero supported?
Romans had no symbol for zero, so the converter starts at 1.
What about negative numbers?
Not supported — Roman numerals are positive integers only.
Why MMXXVI for 2026?
MM = 2000, XX = 20, VI = 6 → 2026.
Is it case-sensitive?
Input is normalized to uppercase before parsing.
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