Roman Numeral Converter
Convert between numbers and Roman numerals.
About Roman Numeral Converter
Convert between Roman numerals and regular numbers in both directions. Roman numerals appear on clocks, in book chapters, on building dates, and in movie credits, and translating a value like MCMXCIV by hand takes real effort. Enter a number to see its Roman numeral form, or paste a numeral to get the standard number, and this converter handles the conversion instantly and accurately. It is useful for students, writers, and anyone decoding a date or a chapter heading. The calculation runs entirely in your browser, so nothing you enter is stored or uploaded, and the tool is free with no signup on any device.
How to use this tool
- 1Type a number or a Roman numeral.
- 2The conversion updates live.
- 3Copy the result.
Frequently asked questions
What range is supported?
Standard Roman numerals cover 1 to 3999, which is the range this converter supports.
Are lowercase numerals accepted?
Yes, input like 'xiv' is accepted and normalized to uppercase.