Convert any number from 1 to 3999 to Roman numerals – or read a Roman numeral as a number.
🔒 Converted in your browser.
How to use the roman numeral converter
- Type a number or a Roman numeral.
- The other box updates instantly.
- Copy the result.
The rules
I = 1, V = 5, X = 10, L = 50, C = 100, D = 500, M = 1000. A smaller numeral before a larger one is subtracted: IV = 4, IX = 9, XL = 40, XC = 90, CD = 400, CM = 900.
Frequently asked questions
What is 2026 in Roman numerals?
MMXXVI.
Why does it stop at 3999?
Standard Roman numerals have no symbol above M, so 4000 needs special notation.
Is there a zero?
No – the Romans had no numeral for zero.