Roman Numeral Converter
Convert between numbers and Roman numerals.
Number to Roman Numeral
Roman Numeral to Number
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About Roman Numeral Converter
Convert numbers to Roman numerals and Roman numerals to numbers. Supports values from 1 to 3,999,999. Free online Roman numeral converter with instant results.
How to Use
- 1
Enter a value
Type a number or a Roman numeral into the input.
- 2
View conversion
The converted value appears instantly.
- 3
Copy result
Click copy to use the result.
Examples
Number to Roman
Input:
2024Output:
MMXXIVRoman to Number
Input:
XLIIOutput:
42Frequently Asked Questions
What is the largest Roman numeral supported?
Our converter supports numbers up to 3,999,999 using the vinculum (bar notation) for numbers above 3,999.
How do Roman numerals work?
Roman numerals use letters (I=1, V=5, X=10, L=50, C=100, D=500, M=1000) combined additively and subtractively.
Can I convert Roman numerals back to numbers?
Yes! Enter a Roman numeral and it will be converted to its decimal equivalent.