Frustum Volume Calculator
Calculate the exact volume of a conical frustum (a cone with the top cut off).
Volume2748.894
What is a Frustum?
A frustum is what remains of a cone or pyramid when you slice off the top parallel to the base. A standard drinking cup or a bucket is a perfect example of a conical frustum.
The Volume Formula
The volume requires knowing the radius of the top base (r₁), the radius of the bottom base (r₂), and the height (h): V = (π·h / 3) × (r₁² + r₁·r₂ + r₂²).
Frequently Asked Questions
Is a frustum always circular?
No, you can have a frustum of a square pyramid, but this specific calculator uses the formula for a circular conical frustum.