Roman Numeral Converter
Convert numbers to Roman numerals and back.
How to use the Roman Numeral Converter
Enter a number from 1 to 3999 or a Roman numeral like MMXXVI.
Formula
I=1 · V=5 · X=10 · L=50 · C=100 · D=500 · M=1000
Worked example
2026 = MMXXVI.
Frequently asked questions
Why does IV mean 4?
A smaller numeral before a larger one is subtracted: IV = 5 − 1.
Results are estimates for educational and planning purposes. Always confirm important financial, health or legal decisions with a qualified professional. Last reviewed 2026-09-27.