about 9.39 in (23.9 cm)
A basketball is about 9.39 in (23.9 cm) from side to side, a size 7 ball (the NBA’s, 29.5 in around). Size 7, the NBA ball: 29.5 in (75 cm) around, so about 9.39 in across.
Source: Wikipedia
How big is a basketball?
A basketball is about 9.39 in (23.9 cm) from side to side, a size 7 ball (the NBA’s, 29.5 in around).
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What a basketball’s size measures
- Baseball pitcher’s mound: 10 in (25.4 cm).
- Soccer ball: 21.6 to 22.3 cm (8.5 to 8.8 in).
- Bowling ball: 8.5 in (21.6 cm) to 8.595 in (21.8 cm).
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Published height
Compared with a basketball
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Cite this page
| APA | Heightvs. (2026, October 18). How big is a basketball? Drawn to scale beside a person. https://heightvs.com/how-tall/basketball |
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| MLA | “How Big Is a Basketball? Drawn to Scale Beside a Person.” Heightvs, 18 Oct. 2026, heightvs.com/how-tall/basketball. |
| Chicago | “How Big Is a Basketball? Drawn to Scale Beside a Person.” Heightvs. Last modified October 18, 2026. https://heightvs.com/how-tall/basketball. |
| Link | <a href="https://heightvs.com/how-tall/basketball">How big is a basketball? Drawn to scale beside a person (Heightvs)</a> |
For the height itself, cite the original publisher as well: Wikipedia.
