Area and volume of shapes
Circle, sphere, cylinder, cone, cube: area, perimeter and volume.
How it works
Circle: π r². Sphere: 4/3 π r³. Cylinder: π r² h. Cone: π r² h / 3. Box: side² × height. 1,000 cm³ = 1 litre.
Results are for guidance only and do not replace professional advice.
Worked example
With the default values:
- ShapeCylinder
- Radius or side (cm)5
- Height (cm)12
you get:
- Volume942.478 cm³
- Total surface534.071 cm²
- In litres0.942 L
Frequently asked questions
How does the “Area and volume of shapes” tool work?
Circle: π r². Sphere: 4/3 π r³. Cylinder: π r² h. Cone: π r² h / 3. Box: side² × height. 1,000 cm³ = 1 litre.
What do I need to enter?
Just fill in: shape, radius or side, height. The result updates as you type.
Can you give an example?
Shape: Cylinder; Radius or side (cm): 5; Height (cm): 12 → Volume: 942.478 cm³; Total surface: 534.071 cm².
Is this calculator free, and is my data private?
Yes. HOD Calc is completely free with no sign-up. The calculation runs in your browser: nothing you type is sent or stored.