Roman numerals
Every number below links to a page showing how the numeral is built. Need something not listed? Use the converter.
The seven symbols
| Symbol | Value |
|---|---|
I | 1 |
V | 5 |
X | 10 |
L | 50 |
C | 100 |
D | 500 |
M | 1,000 |
The subtractive pairs
Only six are legal. Anything else — IL for 49, IC for 99 — is invalid, however logical it looks.
IV | 4 |
IX | 9 |
XL | 40 |
XC | 90 |
CD | 400 |
CM | 900 |