4 in Roman numerals is IV
The Arabic number 4 is written as IV in Roman numerals. Below you can see the parts it is built from.
4 in Roman numerals
IV
How is {n} written in Roman numerals?
Roman numerals run from the largest value to the smallest: IV = 4. In total IV = 4. A smaller symbol before a larger one means subtraction (IV = 4, IX = 9, XL = 40, CM = 900). Roman numerals cover numbers 1-3999.