Roman Numeral Converter – Convert Numbers to Roman and Vice Versa
Convert between Roman numerals and regular numbers.
About this tool
Convert any number to Roman numerals (e.g., 2025 → MMXXV) or Roman numerals to numbers. Supports numbers up to 3999.
Frequently Asked Questions
What is the largest number supported?
3999 (MMMCMXCIX). For larger numbers, we may add an extended version later.
Are subtractive forms used?
Yes, standard modern Roman numerals (e.g., IV for 4, IX for 9).