Math calculator
Volume Calculator
Calculate volume of common 3D shapes.
About the volume calculator
The volume calculator finds the volume of common 3D shapes: sphere, cylinder, cone, cube, and rectangular prism.
How to use this calculator
- 1
Choose shape
Select the 3D shape.
- 2
Enter dimensions
Enter the required dimensions.
- 3
View results
See the volume.
How the calculation works
Sphere: 4/3πr³. Cylinder: πr²h. Cone: 1/3πr²h. Cube: s³. Prism: lwh.
Example: Sphere r=3: volume ≈ 113.10.
When to use a calculator vs. mental math
Simple operations like percentages and proportions are great for mental math. Complex problems — quadratic equations, standard deviation, and base conversions — benefit from calculator precision. Always estimate the answer first to catch input errors, and verify results with a second method when possible.
Important limitations
This tool provides a mathematical estimate based only on the values entered. It does not account for regulations, taxes, lender fees, market conditions, or individual circumstances. Results are for planning purposes only — consult a qualified professional for regulated, medical, financial, or construction decisions.
Frequently asked questions about volume calculator
How accurate is the volume calculator?+
The calculation follows the displayed formula and retains full numeric precision before formatting the result.
Can I use the result professionally?+
Use it as a planning estimate. Confirm regulated, medical, financial, or construction decisions with a qualified professional.