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Roman Numeral Converter
Roman Numeral Converter
Convert numbers to Roman numerals and vice versa using the form below.
Enter Number or Roman Numeral:
Conversion Mode:
Number to Roman
Roman to Number
Convert
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Frequently Asked Questions
What is the largest number that can be converted to Roman numerals?
Standard Roman numerals go up to 3,999 (MMMCMXCIX). Numbers above this require extended notation.
How do I read Roman numerals?
Add values left to right. When a smaller value appears before a larger one, subtract it. For example, IV = 4 (5 minus 1), IX = 9 (10 minus 1).
Can I convert Roman numerals back to decimal?
Yes. The tool works both ways: decimal to Roman and Roman to decimal.
What year is MMXXVI in Roman numerals?
MMXXVI is 2026 (MM=2000, XX=20, VI=6).
How do you write 4 in Roman numerals?
4 is written as IV (5 minus 1). Not IIII, although IIII is sometimes seen on clock faces.
What is the Roman numeral for 1000?
1000 is M in Roman numerals. 2000 is MM, 3000 is MMM.
Are Roman numerals still used today?
Yes. Roman numerals are used for clock faces, book chapters, movie sequels, Super Bowl numbers, and year designations in formal contexts.