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Basketball Size Calculator

Enter your hand dimensions to find the ideal basketball size for optimal control, shooting, and grip mechanics.

Measure wrist crease to middle finger tip.
Measure fully spread thumb-to-pinky tip.
Recommended Basketball Size
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Fill in parameters to see results.

Selecting the Correct Basketball Dimensions

Using a basketball that matches your hand size is critical for developing proper shooting mechanics, dribbling control, and hand speed. If the ball is too large for your hands, you will struggle to secure a clean release point during shooting, and your ball control will be reduced.

Standard Basketball Sizes

Basketball sizes are standardized across different leagues and age groups:

  • Size 7 (Official Men's): Circumference of 29.5 inches. Recommends for players aged 15 and older with hand lengths over 7.5 inches.
  • Size 6 (Official WNBA / Intermediate): Circumference of 28.5 inches. Recommends for boys aged 12-14, girls and women aged 12 and older.
  • Size 5 (Youth): Circumference of 27.5 inches. Recommends for youth players aged 9-11.