How to calculate volume
Box: LWH · Cylinder: πr²h · Sphere: 4/3 πr³ · Cone: 1/3 πr²h
Worked example. Volume: 60 cubic units.
Example inputs — Shape: Box (rectangular prism); Length / radius: 5 units; Width (box only): 4 units; Height / depth: 3 units. Starting values are illustrative.
From George Guju, founder of Calculyn · Educational calculator guidance, not professional advice.
How it works
Pick a shape and enter its dimensions. For cylinders and cones, the first field is the radius of the base; for a sphere it's the radius. Width is only used for boxes.
Assumptions & limitations
- Results are rounded for display.
Formula and assumptions reviewed October 2026 by the Calculyn team. How we build our calculators
Frequently asked questions
How do I get liters or gallons?
Calculate in centimeters, then divide cubic cm by 1,000 for liters — or use our volume converter.