18 in Roman Numerals
XVIII
18 in Roman numerals is XVIII, and is spelled eighteen.
How 18 breaks down
To write 18 in Roman numerals, combine X (10) and VIII (8) to get XVIII.
| Value | Roman |
|---|---|
| 10 | X |
| 8 | VIII |
| 18 | XVIII |
You can open 18 in the converter or browse the full Roman numerals chart.