Size 5 Football: The Complete Sizing and Buying Guide
A size 5 football is the full-size adult ball, 68 to 70 cm around and 410 to 450 g. See the dimensions, the age it suits and how to choose the right one.
A size 5 football is the full-size ball used in every adult and professional match. Under Law 2 of the Laws of the Game it measures 68 to 70 centimetres around, weighs 410 to 450 grams at the start of play, and is the correct size for players aged 14 and up. Anything smaller is a junior ball built for younger age groups, so size is the first decision any buyer makes.
What a size 5 football is
The size 5 football is the standard ball of the adult game. Every professional league, cup and international is played with one, and it is the ball young players move up to when they reach senior formats. The number refers to the ball's dimensions, fixed by Law 2 so that every match anywhere in the world is played with the same size and weight.
Because the specification is standardised, a size 5 ball from one reputable maker is close in size and weight to any other. The differences buyers actually feel come from materials and construction, which is where price and quality vary.