Roman Numeral — IV (4) — free printable diagram

What is IV in Roman numerals?

IV is the Roman numeral for 4 — four. Written the other way round, 4 in Roman numerals is IV.

Roman numeral

IV

Number

4

In words

four

Symbols used

I = 1, V = 5

• IV uses the subtraction rule: a smaller symbol before a larger one is taken away, so I before V means 5 − 1 = 4.
• Roman numerals are read from left to right, adding each symbol as you go, except where the subtraction rule applies.