Instantly convert numbers to Roman numerals and Roman numerals back to numbers. Supports 1 to 4999. Includes a reference table and quick examples.
Frequently Asked Questions
What is the largest number in Roman numerals?
Standard Roman numerals can represent numbers from 1 to 3,999. With the vinculum (overline) notation, numbers up to 3,999,999 can be represented, but this tool covers 1 to 4,999 using the MMMM convention.
Why is 4 written as IV and not IIII?
Roman numerals use the subtractive notation: a smaller numeral placed before a larger one means subtraction. IV means 5 minus 1 = 4. This convention became standard in the medieval period.
What is the Roman numeral for 2024?
2024 in Roman numerals is MMXXIV. MM = 2000, XX = 20, IV = 4.
Can Roman numerals represent zero or negative numbers?
No. Roman numerals have no symbol for zero or negative numbers. The concept of zero was introduced to Europe through Arabic and Indian mathematics.
Where are Roman numerals still used today?
Roman numerals are commonly used for clock faces, movie sequels (Rocky II), Super Bowl numbering, chapter headings in books, copyright years on films, and monarchs (King Charles III).
How accurate is this roman numeral converter tool?
All processing runs entirely in your browser using verified algorithms. Results are computed with full double-precision — no server-side rounding or data transmission occurs.