What Does V Mean in Roman Numerals?
V is five, the first Roman numeral to get a symbol of its own instead of a pile of strokes. It is the hinge of the single digits: four leans on it from below as IV, and six, seven and eight are built on top of it as VI, VII and VIII.
Where V comes from
The most repeated explanation is that V pictures an open hand: four fingers together and the thumb spread, with the outline between them forming the V. Whether or not that is the true root, five is where the Romans stopped counting on strokes and started abbreviating.
How V behaves
- V is never repeated. Ten is not VV, it is X, so a second V never appears in a numeral.
- V is never subtracted. You will not see it placed before a larger symbol; there is no VX or VL.
- V takes a single I before it for four (IV) and carries I strokes after it for six, seven and eight.
V in action
The same symbol behaves differently depending on what sits beside it. These worked examples show V added, and where it applies, subtracted.
| Number | Numeral | What V is doing |
|---|---|---|
| 5 | V | V on its own is five, the base the neighbouring numerals build on. |
| 6 | VI | VI is five plus one, read left to right. |
| 8 | VIII | VIII is five plus three ones, the longest single-digit numeral. |
| 4 | IV | IV places one before the five, the only time a symbol sits to the left of V. |
Try it in the converter
Type any number to see where V lands inside its numeral, or read a numeral back to a number.
5 is written V in Roman numerals.
Frequently asked questions
What does V mean in Roman numerals?
V means five. It is the first Roman numeral to earn its own letter rather than being written as repeated strokes.
Why is V never doubled?
Two fives make ten, which already has its own symbol, X. Roman numerals always use the larger single symbol where one exists, so VV never appears.
Can V be subtracted like I and X?
No. Only I, X and C are ever subtracted. V, L and D are always added, never placed before a larger symbol.