Hemisphere Volume & Surface Area Calculator
A hemisphere represents exactly half of a full sphere. This tool calculates volume V = 2/3πr³, curved dome area A = 2πr², base disc area A = πr², and total solid surface area A = 3πr².
Hemisphere Formulas
Volume: V = 2/3 × π × r³
Total Area (Solid): A = 3 × π × r²
Curved Area (Dome): A = 2 × π × r²
Practical Calculation Steps
- Radius: Identify hemisphere radius
r. - Volume: Cube the radius, multiply by 2, and divide by 3 (then multiply by π).
- Surface Area: If solid, remember to add the circular base (
πr²) to the dome (2πr²), giving3πr².