Volume calculator
Calculator
The calculator needs JavaScript. The tables below give the same numbers for common cases.
How it is worked out
- Volume = πr²h; surface = 2πr(r + h).
- Volume = 282.743339 and surface area = 245.044227.
| Inputs | Answer |
|---|---|
| Shape: Cylinder (a = radius, b = height); a: 3; b: 10; c: 1 | The cylinder has volume 282.743339 cubic units and surface area 245.044227 square units. |
| Shape: Sphere (a = radius); a: 3; b: 1; c: 1 | The sphere has volume 113.097336 cubic units and surface area 113.097336 square units. |
| Shape: Rectangular box (a, b, c = length, width, height); a: 2; b: 3; c: 4 | The rectangular box has volume 24 cubic units and surface area 52 square units. |
| Shape: Cone (a = radius, b = height); a: 3; b: 10; c: 1 | The cone has volume 94.24778 cubic units and surface area 126.671905 square units. |
How to use it
Volume is the space a solid takes up, in cubic units. Cube a³, box a × b × c, cylinder πr²h, sphere 4⁄3πr³, cone ⅓πr²h, square pyramid ⅓ × base² × h, hemisphere ⅔πr³.
Read what a, b and c mean from the shape's label. Use the same unit for every length; the volume is in that unit cubed. The total surface area is shown too.
Frequently asked questions
What is the volume of a cylinder with radius 3 and height 10?
π × 3² × 10 ≈ 282.743 cubic units.
How do I find the volume of a sphere?
4⁄3 × π × r³. For r = 3 that is about 113.097.
How do I convert litres to cubic metres?
1 litre = 0.001 cubic metres.
Method: standard arithmetic shown step by step; no outside data is used. Checked 2026-11-12.
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General information only. Results are plain arithmetic on the numbers you enter; check anything important (money, health, school work) against your own records or the official source.