3D Shape Calculator

Calculate volume and surface area for common 3D solids from one calculator.

What this calculator answers

The 3D Shape Calculator uses the requested values to calculate the requested result. The core method is Related formulas are calculated together from shared inputs.. This makes the assumptions visible so you can check whether the inputs match your situation.

How to get a useful result

Use dimensions from the same unit system and identify whether values are radius, diameter, height, side length or slant height.

How to interpret it

Geometric results assume the ideal shape described by the formula; real objects may require tolerances or waste allowances.

Before relying on the number

Recheck unusual inputs, confirm units and compare the result with any official quote, statement, specification or rule that applies to the real decision. Small changes in rates, time periods or measurements can materially change some results.