Cube Calculator
Calculate the volume and surface area of a cube from its side length, with a 3D diagram.
How it works
- 1Enter the cube’s side length.
- 2Read the volume (side³) and surface area (6 × side²).
- 3Check the 3D diagram for the labelled side.
Use cases
- Find the capacity of a cubic box or tank.
- Estimate material to cover all six faces.
- Check geometry homework on cubes.
Frequently asked questions
What is the volume of a cube?
Volume = side³ (side × side × side). A cube with side 3 has a volume of 27 cubic units.
What is the surface area of a cube?
A cube has 6 equal square faces, so surface area = 6 × side². A side of 3 gives 54 square units.
What units does this use?
Whatever unit you enter. Side in centimetres gives volume in cubic centimetres and surface area in square centimetres.
Related tools
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Calculate the area and circumference of a circle from its radius, with a labeled diagram.
Calculate the area (Heron’s formula) and perimeter of a triangle from its three sides.
Calculate the area and perimeter of a trapezoid from its two parallel sides, height, and legs.