Indoor and Outdoor Basketballs: Size, Cover, Pressure

Size 7, 6 or 5: the ball that matches the player

Basketballs are sized by circumference. A size 7 ball measures 29.5 inches, the standard for men and for older boys. A size 6 ball measures 28.5 inches and is used by women and by younger players, and a size 5 ball measures 27.5 inches for children. The size in the title decides how the ball fits the hand, so check it ahead of the cover or the color.

A ball one size too large makes dribbling and shooting form harder for young players, and one that is too small can build bad habits. League rules specify sizes by age group and gender, so check the league's requirements for organized play. Some listings in this category are not balls at all, such as boat keel protectors, so read the product type.

Rubber, composite or leather cover: indoor, outdoor or both?

A rubber cover is durable and holds up on concrete and asphalt, but it can feel hard and less grippy indoors. Composite or synthetic leather covers give better grip and feel and work both indoors and outdoors, though they wear faster on rough ground. Full leather balls are for indoor courts, because outdoor surfaces wear them down quickly.

Look at inflation: the recommended pressure is printed near the valve, often around 7.5 to 8.5 psi for a basketball, and a hand pump with a needle keeps it at the right level. Deep channels and a pebbled surface improve grip, and a moisture-wicking composite cover helps in sweaty conditions. Keep the ball inflated, away from heat, and clean.

Questions about Indoor and Outdoor Basketballs: Size, Cover, Pressure

What size basketball is right for kids?

Children around 9 to 11 usually use a size 5 ball, 27.5 inches around. Girls and women play with a size 6, and older boys and men with a size 7. Check the league's rules for organized play.

Can I use an indoor basketball outside?

You can, but a leather or fine-pebbled indoor ball wears quickly on rough concrete and loses grip. A rubber or composite outdoor ball is built for abrasion. If you play on both, a composite ball is the usual compromise.

How do I know a basketball has the right pressure?

Read the recommended pressure printed near the valve, usually 7.5 to 8.5 psi, and check it with a gauge. A properly inflated ball bounces consistently and feels firm but not hard; if it feels mushy, it needs air.