Roman Numeral Four

Roman Numeral Four at U+2163 represents the value four as a single precomposed Roman-numeral character. It belongs to the Number Forms block, where Unicode encodes several Roman numerals and other number-like symbols for compatibility with existing text standards and typography. In ordinary writing, four is usually typed with the separate Latin letters IV, so this character is most often seen in legacy documents, rich text copied from specialized sources, or typography that wants Roman numerals to behave as one unit. It can label monarchs and popes, such as Henry Ⅳ, or mark volume, chapter, act, and section numbers in formal publishing. It also appears in clocks, outlines, page numbering, legal references, and academic material when source data used dedicated number-form characters rather than plain letters. Search and matching can be tricky because this single character is not the same text as the two-character sequence IV, even though they look and mean nearly the same in many fonts.