How to Use the Roman Numerals Converter
Type a number (1–3999) to see the Roman numeral, or type a Roman numeral to see the integer. Conversion is live as you type.
Roman Numerals Converter Formula
Greedy algorithm: subtract largest Roman value that fits; M=1000, CM=900, D=500…Example Calculation
Convert 2024 to Roman:
MM + XXIV = 1000+1000+10+10+4
MMXXIV
Frequently Asked Questions
What is the largest Roman numeral?
Standard Roman numerals go up to 3,999 (MMMCMXCIX). There is no standard representation for 4,000+ in classical Roman numerals, though extended systems exist.