Roman Numeral Converter
Enter a number (1–3999) or Roman numeral string to convert instantly.
Convert any number from 1 to 3,999 to Roman numerals, or translate any Roman numeral string back to a decimal number. Includes validation and common Roman numeral references.
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Last reviewed: April 2026Report an error
Roman Numeral
MMXXIV
2024 = MMXXIV
Arabic Number
2024
Roman Numeral
MMXXIV
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How to Use This Roman Numerals Calculator
- Choose direction: Number → Roman Numerals, or Roman Numerals → Number.
- Enter your value.
- Read the converted result.
Frequently Asked Questions
- I=1, V=5, X=10, L=50, C=100, D=500, M=1000. Subtractive notation: IV=4, IX=9, XL=40, XC=90, CD=400, CM=900.
- Traditional Roman numerals go up to 3,999 (MMMCMXCIX). Numbers above 3,999 require a bar over symbols to multiply by 1,000.
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