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Roman Numerals
Convert a number (1–3999) to Roman numerals and convert Roman numerals back to a number. Useful for dates, chapters, clocks and copyright years.
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💡 Good to know: Roman numerals have no zero — one reason arithmetic was painful in Europe until Hindu-Arabic numerals arrived.
Worked example
Roman: MMXXIV · Number: 2024
Inputs
- Number (1–3999)
2024 - Roman → number
MMXXIV
Frequently asked
What is 2024 in Roman numerals?
MMXXIV.
Why only up to 3999?
Standard Roman numerals have no symbol above M repeated three times, so 3999 (MMMCMXCIX) is the ceiling.