In badminton, what is the maximum permitted length of a racket?

The maximum permitted length of a badminton racket is 680 millimetres.

The Badminton World Federation equipment laws limit racket dimensions so that equipment remains comparable across competition. The measurement includes the handle, shaft, throat, frame and head rather than just the stringed area.

Rackets have changed substantially from early wooden designs. Modern rackets are commonly made from graphite-based composite materials, which provide low weight and useful stiffness. Players choose different balances and shaft flexes, but those preferences do not remove the dimensional limit.

Length is often confused with head size. The head determines the stringed hitting area, while the 680-millimetre rule concerns the entire racket from the butt to the farthest point of the frame.