Hemisphere Calculator
Calculate volume and surface area from radius.
Formula
V = (2/3)πr³, SA = 3πr²
Volume is two-thirds pi r cubed (half a sphere). Total surface area includes the curved surface (2πr²) plus the circular base (πr²).
Examples
r=3
r=5
r=7
Frequently Asked Questions
What is the volume of a hemisphere?
V = (2/3)πr³, exactly half the volume of a sphere.
What is the surface area of a hemisphere?
SA = 3πr² (curved part 2πr² plus flat base πr²).
About this Calculator
Calculate volume and surface area from radius. All calculations are performed in your browser for instant results. Formulas are mathematically exact using JavaScript's built-in Math functions.