Roman Numeral Converter
Convert numbers to Roman numerals and vice versa.
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Frequently Asked Questions
What is the largest Roman numeral?
The largest commonly used Roman numeral is MMMCMXCIX, which equals 3,999. Larger numbers require special notation with a vinculum (bar) over letters.
Is there a Roman numeral for zero?
No. The Roman numeral system did not have a symbol for zero. The concept of zero was introduced to Europe much later from Arabic mathematics.
Where are Roman numerals still used today?
Roman numerals appear on clock faces, movie credits, book chapters, monarch names, and sporting events like the Super Bowl.