Britannica
Sources used in this answer
How many cents are in an equal-tempered semitone?
Created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
In equal temperament, an octave is divided into 12 semitones of equal size. Each of these semitones is measured at exactly 100 cents, where 1 cent is defined as 1/1,200 of an octave.1