4 in Roman Numerals
4 written in Roman numeralsIV
4 = IV. Read left to right: IV (4) = 4.
Going the other way, the Roman numeral IV equals the number 4.
How to write 4 in Roman numerals
- Ones: 4 is IV.
IV uses subtractive notation: IV means 4. A smaller symbol placed before a larger one is subtracted from it.
A common mistake is writing 4 as IIII. Standard Roman numerals only allow I before V and X, X before L and C, and C before D and M, and no symbol repeats more than three times, so the correct form is IV.
4 is an even number, a perfect square (2 × 2) and written with 2 symbols in Roman numerals.
Where you might see IV
- On a clock face, IV marks 4 o'clock (many clocks use IIII instead).
- In dates written in Roman numerals, IV can stand for the month of April.
- Super Bowl IV was the 4th Super Bowl, played in early 1970.
- Book chapters, outlines, movie sequels and royal names use numerals like IV for the number 4.
Multiples of IV
| Sum | Number | Roman numeral |
|---|---|---|
| 4 × 2 | 8 | VIII |
| 4 × 3 | 12 | XII |
| 4 × 5 | 20 | XX |
| 4 × 10 | 40 | XL |
Numerals near IV
| Number | Roman numeral |
|---|---|
| 1 | I |
| 2 | II |
| 3 | III |
| 4 | IV |
| 5 | V |
| 6 | VI |
| 7 | VII |
| 8 | VIII |
| 9 | IX |
Questions
How do you write 4 in Roman numerals?
4 is written IV.
What number is IV?
IV is 4.