Roman number IV to decimal

The Roman number IV is equivalent to the number 4 (four).

4
IV

IV = 4
The Roman numbering system (Roman numerals) was created in Ancient Rome, and was used throughout the Roman Empire. It consists of seven capital letters of the Latin alphabet: I, V, X, L, C, D and M.
Keywords: How is the number 4 in Romano, How to write 4 in Roman numerals