What is the largest Roman numeral supported?

This converter supports numbers up to 3,999,999 using vinculum (overline) notation, where a bar over a numeral multiplies its value by 1,000.

How does vinculum notation work?

A line above a Roman numeral multiplies it by 1,000. For example, V with an overline equals 5,000 and X with an overline equals 10,000.

Can I convert a list of numbers at once?

Yes. Use the batch conversion mode to paste a list of numbers (one per line) and convert them all at once.

How do I convert a year to Roman numerals?

Enter the year in the date-to-Roman section or simply type the year number in the converter. For example, 2026 becomes MMXXVI.

Roman Numeral Converter

Free Roman numeral converter. Convert numbers to Roman numerals and Roman numerals to numbers. Supports 1 to 3,999,999 with vinculum notation, batch conversion, and date-to-Roman.

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