Basketball (size 7)
Basketball (size 7) measures ⌀241.0mm. It weighs about 624.0g.
Dimensions
| Diameter | 241.0 mm |
|---|---|
| Weight | 624.0 g |
Basketball
A regulation NBA basketball has a circumference of 29.5 inches (75 cm) and weighs 22 ounces (623.7 grams). This page covers the exact dimensions for men’s and women’s regulation balls, weight, and how basketball size compares to other common sports balls.
- Dimensions
- Basketball size chart
- Weight
- Basketball vs other sports balls
- Frequently asked questions
- What is the circumference of an official basketball?
- How much does a basketball weigh?
- What size basketball do the WNBA and women's college teams use?
- What size basketball is used for youth players?
- Is a basketball bigger than a soccer ball?
- Related objects
Dimensions
| Measurement | Inches | Centimeters |
|---|---|---|
| Circumference (men’s, size 7) | 29.5 | 75 |
| Diameter | 9.39 | 23.9 |
Basketball size chart
| Size | Circumference (in) | Used by |
|---|---|---|
| Size 7 | 29.5 | Men’s, boys 12+ |
| Size 6 | 28.5 | Women’s, boys 9-11 |
| Size 5 | 27.5 | Youth 8-11 |
Size 6 is the official ball for women’s NCAA and WNBA play, one inch smaller in circumference than the men’s size 7 ball used in the NBA. Youth leagues typically step down to a size 5 ball for younger players, whose smaller hands make full-size balls harder to control and shoot accurately.
Weight
A regulation size 7 basketball weighs 22 ounces (623.7 grams). The smaller size 6 ball used in women’s play weighs slightly less, around 20 ounces (567 grams), matching its reduced circumference.
Basketball vs other sports balls
| Ball | Circumference (in) | Weight (oz) |
|---|---|---|
| Basketball (size 7) | 29.5 | 22 |
| Soccer ball (size 5) | 27 to 28 | 14 to 16 |
| Volleyball | 25.6 to 26.4 | 9.2 to 9.9 |
A basketball is larger and heavier than a soccer ball or volleyball, reflecting its role in a game built around dribbling and one-handed control rather than kicking or striking with the forearm.
Frequently asked questions
What is the circumference of an official basketball?
29.5 inches (75 cm) for a men’s regulation size 7 basketball, the size used in the NBA and men’s college basketball.
How much does a basketball weigh?
22 ounces (623.7 grams) for a regulation size 7 ball, slightly less for the smaller size 6 ball used in women’s play.
What size basketball do the WNBA and women’s college teams use?
Size 6, which has a circumference of 28.5 inches, one inch smaller than the men’s size 7 ball.
What size basketball is used for youth players?
Size 5, with a circumference of 27.5 inches, is standard for youth players around ages 8 to 11.
Is a basketball bigger than a soccer ball?
Yes. A regulation basketball has a circumference of 29.5 inches, larger than a size 5 soccer ball’s 27 to 28 inches.
Related objects
Frequently Asked Questions
How much does a Basketball (size 7) weigh?
A Basketball (size 7) weighs about 624.0g.