Roman Numeral Converter
Convert between standard numbers and Roman numerals in both directions, useful for reading historical dates and numbering conventions.
About the Roman Numeral Converter
A Roman numeral converter converts between standard numbers and Roman numerals in both directions, useful for reading historical dates, clock faces, or numbering conventions that still use Roman numerals.
How to use
1
Enter a number to convert it to Roman numerals, or enter Roman numerals to convert them to a number.
2
View the converted result.
3
Try different values to see how the notation changes.
Frequently asked questions
What is the largest number a standard Roman numeral can represent?
Using standard notation without special extensions, Roman numerals typically go up to 3,999, since there's no single symbol for 5,000 or larger without additional conventions.
Why do some Roman numerals subtract, like IV for 4?
Placing a smaller value symbol before a larger one indicates subtraction, a convention used to write four-based and nine-based numbers more compactly than repeating symbols.
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