Números Romanos
Convierte entre números romanos y decimales
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What is Roman Numeral Converter?
Roman numerals use seven letters (I, V, X, L, C, D, M) to represent numbers and are still used today for clock faces, chapter numbers, movie release years, Olympic games, and formal documents. DailyDevTools' Roman Numeral Converter converts any integer (1–3,999) to Roman numerals and any valid Roman numeral string back to an integer — with subtractive notation (IV = 4, IX = 9) handled correctly.
How to use Roman Numeral Converter
- 1Enter an integer (1–3,999) to convert to Roman numerals
- 2Or enter a Roman numeral string (e.g., MCMXCIX) to convert to an integer
- 3The converter handles subtractive notation automatically (IV=4, IX=9, XL=40, XC=90, CD=400, CM=900)
- 4Browse the reference table showing all Roman numeral values
Frequently asked questions
Why is 4 written as IV and not IIII in Roman numerals?
IV (4) uses the subtractive principle — I before V means 5 minus 1. This notation emerged in medieval Europe for efficiency. Both IIII and IV have been historically used; modern convention (and this converter) uses IV.
What is the largest number in Roman numerals?
Standard Roman numerals go up to 3,999 (MMMCMXCIX). There is no single symbol for 4,000 or higher in the standard system. Ancient Romans used vinculum (bar over a numeral) to multiply by 1,000, but this is rarely used today.
How do you write the current year in Roman numerals?
For 2024: MM (2000) + XXIV (24) = MMXXIV. The converter can convert any year to Roman numerals instantly.
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