How to use this calculator
Choose a shape and enter its dimensions. The calculator applies the matching geometric formula and keeps the selected unit as a cubic unit.
Formula
Volume depends on shape and is reported in cubic units.
Example
A cylinder with radius 3 ft and height 5 ft has volume π × 3² × 5 ≈ 141.37 ft³.
Frequently asked questions
Must every dimension use the same unit?
Yes. Convert dimensions to one unit before calculating.
Why is the answer in cubic units?
Volume measures three-dimensional space, so the linear unit is raised to the third power.