One half

← −0.5 0.5 1.5 →
−1 0 1 2 3 4 5 6 7 8 9 → List of numbers; Integers; ← 0 10 20 30 40 50 60 70 80 90 →
Cardinal	one half
Ordinal	1⁄2th (halfth)
Binary	0.12
Ternary	0.11111111113
Senary	0.36
Octal	0.48
Duodecimal	0.612
Hexadecimal	0.816
Greek	∠
Roman numerals	S
Egyptian hieroglyph	𓐛
Hebrew	חֵצִ
Malayalam	൴
Chinese	半
Tibetan	༪

One half (pl. halves) is the irreducible fraction resulting from dividing one (1) by two (2), or the fraction resulting from dividing any number by its double.

It often appears in mathematical equations, recipes, measurements, etc.