Hemisphere Calculator

Volume and surface area of a hemisphere.

Volume 261.8

Total surface area 235.62

Formula: V = (2/3)πr³ ; SA = 3πr²

Step-by-step with your numbers:

1. Values used:

2. Radius = 5

4. Volume = 261.8

5. Total surface area = 235.62

Did we solve your problem today?

Half a sphere — volume and total surface (curved + flat).

The math behind it

Volume = ⅔πr³. Total surface = curved 2πr² + flat circle πr² = 3πr².

Radius 5 → volume 261.8.

Dome only?

The curved area alone is 2πr².