Roman Numerals Converter
Convert numbers to Roman numerals and back—handy for dates, outlines, tattoos, and formatting.
Roman Numerals Converter (Numbers ↔ Roman)
Convert modern Arabic numbers (1, 2, 3) to Roman numerals (I, II, III) and vice versa. This two-way converter is perfect for finding the year for a tattoo, deciphering copyright dates on movies, or helping with homework. It strictly follows standard Roman numeral rules (subtractive notation like IV for 4) and validates inputs to prevent errors.
How it Works
- 1Enter a number (e.g., 2026) to see 'MMXXVI'.
- 2Enter a Roman numeral (e.g., MCMLXXX) to see '1980'.
- 3The tool auto-detects the input type.
- 4Copy the result with a single click.
- 5See validation errors if invalid characters are used.
Key Features
Common Use Cases
Frequently Asked Questions
Everything you need to know about using this tool effectively and securely.
Q.Why does it stop at 3,999?
Standard Roman numerals use 'M' (1000) as the largest symbol. To represent 4,000 and above, a 'vinculum' (line over the character) is required, which is not standard in basic text converters.
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