Volume CalculatorFree online math calculator — instant results, no sign-up

Cube: V = a^3
Box: V = a × b × h
Sphere: V = (4/3) × π × a^3
Cylinder: V = π × a^2 × h
Cone: V = (π × a^2 × h) / 3
Pyramid (square): V = (a^2 × h) / 3

• VVolume of the solid
• aPrimary linear dimension: side length (Cube, Pyramid), length (Box), or radius (Sphere, Cylinder, Cone)
• bWidth of the rectangular box
• hPerpendicular vertical height
• πMathematical constant pi (~3.14159265)

The tool reads the selected geometric shape and applies its corresponding standard geometric volume formula using dimensions a, b, and h. Dimensions not relevant to the chosen shape (such as width and height for a cube or sphere) are ignored in the calculation. The final volume is displayed rounded to up to 6 decimal places.

These are the calculator's starting values and the results it actually produces for them.

1. 1Select the target geometric solid from the Shape dropdown.
2. 2Enter dimension a (side length, box length, or radius depending on the solid).
3. 3Enter width b if calculating a rectangular box, and perpendicular height for shapes requiring height.
4. 4Read the computed total volume in cubic units matching your input measurements.

Further reading

• Wolfram MathWorld
• Khan Academy