IV
Roman Numerals Converter
Convert numbers to and from Roman numerals instantly. Learn the Roman numeral system with our free converter tool.
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ℹ️ About Roman Numerals
Convert between Roman numerals and Arabic numbers. Learn the Roman numeral system. Perfect for history, clocks, and formal numbering.
💡 Use Cases
Converting dates to Roman numerals
Understanding historical dates
Reading clock faces
Movie copyright years
Educational purposes
📋 How to Use
1
Enter a number or Roman numeral
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View the conversion instantly
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Learn the numeral values
4
Copy for use
💎 Pro Tips
- I=1, V=5, X=10, L=50, C=100, D=500, M=1000
- Subtraction: IV=4, IX=9, XL=40, XC=90
- Maximum standard is 3999 (MMMCMXCIX)
❓ Frequently Asked Questions
Standard: MMMCMXCIX (3999). Extended systems go higher.
Subtractive notation: 4 is written as "one before five" (IV).
No, Roman numerals have no zero. It was introduced later.