By Zencalcy Editorial TeamLast reviewed About us
Domes and bowls: a hemisphere is half a sphere, V = ⅔πr³. The tool shows the full-sphere volume alongside so the halving is explicit.
V = (2/3)πr³ — enter dimensions, get the result with steps.
V = (2/3)πr³
| Symbol | Meaning |
|---|---|
| r | Radius (≥ 0) |
r = 3 → sphere 113.0973, hemisphere ≈ 56.5487.
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Half: ⅔πr³ vs ⁴⁄₃πr³.
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Content updated: September 2026