Calculate truncated cone volume from outer and inner radii or diameters and height. Convert units and reverse solve missing values.
This volume of a cone frustum calculator helps you calculate the volume of a cone frustum from the outer radius, inner radius, and height. It is useful for geometry problems, technical drawings, and practical calculations.
The calculator is also useful when you want to calculate the volume of a frustum from radii or diameters and quickly estimate the capacity of containers, hoppers, lampshades, and other frustum-shaped objects.
$$V= \frac{\pi h(R^2+Rr+r^2)}{3}$$
The standard formula is V = (1/3) pi h (R^2 + Rr + r^2), where R is the larger radius, r is the smaller radius, and h is the vertical height.
V = (1/3) pi h (R^2 + Rr + r^2)
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r
h
Yes. If you know the two radii and the height, the calculator can directly find the volume of the truncated cone.
Yes. The calculator also supports diameter-based input and converts those values internally before applying the formula.
Yes. Reverse calculation can help you find a missing radius, diameter, or height when the volume and the other dimensions are already known.
It is useful for hoppers, buckets, cups, nozzles, lampshades, molds, and any object shaped like a truncated cone.
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