How to write 18 in Roman numerals
Split 18 into thousands, hundreds, tens and ones, write each part with Roman symbols and join them:
| Symbols | Value | Rule |
|---|---|---|
| X | 10 | add |
| V | 5 | add |
| I | 1 | add |
| I | 1 | add |
| I | 1 | add |
18 in Roman numerals is written XVIII. Here is how it breaks down symbol by symbol.
Split 18 into thousands, hundreds, tens and ones, write each part with Roman symbols and join them:
| Symbols | Value | Rule |
|---|---|---|
| X | 10 | add |
| V | 5 | add |
| I | 1 | add |
| I | 1 | add |
| I | 1 | add |
| Number | Roman numeral |
|---|---|
| 36 | XXXVI |
| 180 | CLXXX |
| 19 | XIX |
| 17 | XVII |
18 in Roman numerals is XVIII (X + V + I + I + I = 10 + 5 + 1 + 1 + 1 = 18).
XVIII is the Roman numeral for 18.