Hemisphere Volume and Surface Area Calculator
Enter the radius of a hemisphere (half a sphere) to calculate its volume and surface area.
Hemisphere Volume and Surface Area Calculator
Calculate the volume, curved surface area and total surface area of a hemisphere.
This calculator provides an estimate for general informational purposes only. It is not a substitute for professional financial, mechanical or engineering advice.
A hemisphere's volume is exactly half a full sphere's volume, while its total surface area combines the curved half-sphere surface with the flat circular base.
Example
- With the default values shown above, this calculator returns: Volume ≈ 452.39; Curved Surface Area ≈ 226.19; Total Surface Area (incl. base) ≈ 339.29.
Frequently Asked Questions
What are the formulas?
Volume = (2/3) × π × radius³. Curved Surface Area = 2 × π × radius². Total Surface Area (curved surface plus the flat circular base) = 3 × π × radius².
How does this relate to a full sphere?
A hemisphere is exactly half a sphere by volume, but its surface area isn't simply half the sphere's surface area, since it also includes the flat circular base.