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

Enter a number or Roman numeral

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Learn the numeral values

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💎 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.

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