18 in Roman Numerals
XVIII
Roman numeral for 18
The number 18 is written as XVIII in Roman numerals.
Convert any number — 1 to 3,999,999
How XVIII is formed
| X | 10 | |
| V | 5 | |
| I | ×3 | 3 |
| XVIII | 18 |
About this number
Written with 5 characters.
Base Symbols
I=1V=5X=10L=50C=100D=500M=1000
See also: What is XVIII? · Chart 1–100