Hemisphere Calculator
A hemisphere is half a sphere — like a dome or a bowl. Enter the radius to get its volume, curved surface area and total surface area with the full step-by-step working shown, perfect for homework and quick checks.
How to use
- Enter the radius of the hemisphere in any unit.
- The volume, curved surface area and total surface area are calculated instantly.
- Read the step-by-step working below to see the formulas used.
Good to know
- Volume = (2/3)πr³, curved surface area = 2πr², total surface area (with base) = 3πr².
- Keep your units consistent: radius in cm gives volume in cm³ and areas in cm².
- A hemisphere is exactly half of a full sphere with the same radius.
Note: Formulas: Volume = (2/3)πr³, Curved surface area = 2πr², Total surface area = 3πr² (curved + base circle πr²).