Roman Numerals Converter
Convert Arabic numbers to Roman numerals and vice versa. Supports values from 1 to 3999. Instant bidirectional conversion.
How do Roman numerals work?
Roman numerals use 7 letters: I (1), V (5), X (10), L (50), C (100), D (500) and M (1000). Subtractive notation allows representing 4 (IV), 9 (IX), 40 (XL), 90 (XC), 400 (CD) and 900 (CM).
The system supports values from 1 to 3999 (MMMCMXCIX). Zero and negative numbers do not exist in the classical Roman system.
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