4 in Roman Numerals
How to write the number 4 in Roman numerals, with the full place-value breakdown.
The number 4 in Roman numerals
IV
Place-value breakdown
4 = 4, so IV = IV. Roman numerals are written from largest to smallest value, left to right:
| Place | Value | Roman | Rule |
|---|---|---|---|
| Ones | 4 | IV | Subtractive rule: IV = 5 − 1 (a smaller symbol before a larger one is subtracted) |
About the number 4
The number 4 is written IV in Roman numerals.
Looking for the ordinal form — "4th in Roman numerals"? Roman notation makes no distinction between cardinal and ordinal numbers, so "4th" is also written IV.
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Roman numeral
IV