In character encoding terminology, a code point, codepoint or code position is a numerical value that maps to a specific character. Code points usually represent a single grapheme—usually a letter, digit, punctuation mark, or whitespace—but sometimes represent symbols, control characters, or formatting. The set of all possible code points within a given encoding/character set make up that encoding's codespace.

For example, the character encoding scheme ASCII comprises 128 code points in the range 0_hex to 7F_hex, Extended ASCII comprises 256 code points in the range 0_hex to FF_hex, and Unicode comprises 1,114,112 code points in the range 0_hex to 10FFFF_hex. The Unicode code space is divided into seventeen planes (the basic multilingual plane, and 16 supplementary planes), each with 65,536 (= 2¹⁶) code points. Thus the total size of the Unicode code space is 17 × 65,536 = 1,114,112.