Frustum Volume Calculator
Calculate the exact volume of a conical frustum (a cone with the top cut off).
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.
Disclaimer: This calculator is for educational and learning purposes only. While we strive for accuracy, calculations are provided "as-is" without warranty. The accuracy of results depends on the accuracy of input data provided. Always verify important calculations independently. For critical applications or when accuracy is essential, consult with appropriate professionals or use verified reference sources. Educational calculators may contain rounding or approximations.