Hemisphere Volume Calculator
Half a sphere. Bowls, domes and the tops of silos are hemispheres.
V = ⅔ πr³
Volume of the hemisphere
261.799ft³
- Surface area
- 235.619 ft²
- V = 2/3 × π × 5³ = 261.799 ft³
Volume in other units
| m³ | 7.4133 |
| liters | 7,413.33 |
| ft³ | 261.799 |
| yd³ | 9.6963 |
| in³ | 452,389 |
| US gallons | 1,958.4 |
| cm³ (mL) | 7,413,330 |
How to find the volume of a hemisphere
Volume: V = ⅔ πr³. Surface area: SA = 3πr² (curved 2πr² + flat base πr²).
- Measure in one unit. The answer comes out in that unit cubed (ft³, m³).
- Substitute into the formula; the calculator shows the steps with your numbers.
- Read liters, gallons, cubic yards and more in the conversion table. 1 ft³ ≈ 7.48 US gallons ≈ 28.32 liters.
Questions people ask
Does the surface area include the flat circle?
Our figure does (3πr²). For an open bowl, use only the curved part: 2πr².
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