Truncated Cone Volume Calculator

Recall a truncated cone (a.k.a. frustum) is a cone whose top is cut off with a plane parallel to the base. This definition gives us immediately a method of calculating the truncated cone volume: we need to subtract the volume of the smaller cone (the one we cut off) from the volume of the bigger (original) cone. What is left is the volume of the truncated cone. Easy!

Following this line of reasoning and performing some basic math operations, we arrive at the following volume formula for our truncated cone:

V = (1/3) * π * h * (r² + r * R + R²),

Where:

• R is the radius of the base of the original cone (bottom surface);
• r is the radius of the top surface; and
• h is the height of our truncated cone.

To compute the volume of a truncated cone with our tool, you need to:

1. Insert the data you have. Most probably, you know the height h and the top and bottom radii: r and R, respectively.
2. It may happen, in more advanced problems, that you know the slant height s. Insert whatever you have!
3. The magic happens, and the empty fields, including volume, fill in immediately.
4. Adjust the units if needed.

As you can see, truncated cone volume calculator is a very straightforward tool!

Want to learn more about solids and truncated cones in particular? Make sure to check out the following tools:

• Volume calculator;
• Cone volume calculator;
• Truncated cone calculator; and
• Frustum cone volume calculator.