How to write 9 in Roman numerals
Split 9 into thousands, hundreds, tens and ones, write each part with Roman symbols and join them:
| Symbols | Value | Rule |
|---|---|---|
| IX | 9 | subtract: I before X |
9 in Roman numerals is written IX. Here is how it breaks down symbol by symbol.
Split 9 into thousands, hundreds, tens and ones, write each part with Roman symbols and join them:
| Symbols | Value | Rule |
|---|---|---|
| IX | 9 | subtract: I before X |
| Number | Roman numeral |
|---|---|
| 18 | XVIII |
| 90 | XC |
| 10 | X |
| 8 | VIII |
9 in Roman numerals is IX (IX = 10 − 1 = 9).
IX is the Roman numeral for 9.