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Volume Calculator

Volume and surface area of cubes, boxes, cylinders, cones, spheres, pyramids and prisms.

Result

Enter every measurement, in the same unit.

Runs in your browser — nothing you enter is sent to a server.

How the Volume Calculator works

Choose a solid and enter its measurements in one unit to get its volume (in that unit cubed) and its surface area (in that unit squared).

Formulas

Prisms and cylinders

box l × w × h; cylinder πr²h; triangular prism ½ × base × height × length

Pointed shapes

cone ⅓πr²h; square pyramid ⅓ × side² × h

Spheres

sphere ⁴⁄₃πr³ (surface 4πr²); hemisphere ⅔πr³ (surface 3πr²)

Examples

A box and a cylinder

A 2 × 3 × 4 box holds 24 and has a surface of 52. A cylinder of radius 2 and height 5 holds about 62.8319.

A sphere and a cone

A sphere of radius 3 holds about 113.0973. A cone of radius 3 and height 4 has a surface of about 75.3982 (its slant is 5).

Frequently asked questions

How do I get litres?

Measure in cm: 1,000 cm³ is 1 litre. Or convert with the Volume Converter.

Why is the prism's surface area missing?

It depends on all three sides of the triangle, not just its base and height.

Does the surface area include the base?

Yes — every face, including the bases of cylinders, cones and pyramids.

Volume Converter

Convert liters, milliliters, US and UK gallons, cups, fluid ounces, spoons and cubic units.

Converters

Concrete Calculator

Work out how much concrete a slab, footing or round column needs, in cubic metres, cubic yards and bags.

Construction Tools