Work out the volume of 3D shapes in one click with this free volume calculator. Choose a cube, cuboid, sphere, cylinder or cone, enter the measurements and get the volume in cubic units — useful for packing, concrete, tanks and science homework.
How to Use
- Choose the 3D shape you want to measure.
- Enter the measurements — the labels update for each shape.
- Click Calculate to see the volume and the formula used.
- Use Reset to clear the form and measure another shape.
Key Features
- Five 3D shapes. Cube, cuboid, sphere, cylinder and cone in one tool.
- Shows its working. The volume formula is displayed with every answer.
- Decimal friendly. Enter fractional measurements such as 2.5 with no problem.
- Private and instant. Everything runs in your browser; no data leaves your device.
- Free, no sign-up. Measure boxes, tanks and project volumes as often as you like.
FAQs
What units is the answer in?
Cubic units of whatever you enter. If you measure in centimetres, the answer is in cubic centimetres; if you measure in metres, it is in cubic metres.
Does the sphere use radius or diameter?
It uses the radius. If you only know the diameter, simply halve it before entering.
Can I enter decimal measurements?
Yes. All fields accept decimals, so measurements like 1.75 are no problem.
Is any of my data stored?
No. All calculations happen locally in your browser, and the measurements you enter never leave your device.