How do I find a cube's volume?
Cube the edge length: edge times edge times edge. An edge of 4 gives a volume of 64. All twelve edges of a cube are equal.
// maths › 3D Solids
Cube Volume Calculator
Find the volume, surface area and space diagonal of a cube from its edge length.
volume = s³ ; surface area = 6s² ; space diagonal = s√3
Frequently asked questions
What is the surface area?
Six times the edge squared, because a cube has six identical square faces. For an edge of 4 that is 6 times 16, or 96.
What is the space diagonal?
The longest line inside the cube, running from one corner to the opposite corner through the middle. It equals the edge times the square root of 3.
How is volume different from surface area?
Volume is the space inside (cubic units); surface area is the total skin outside (square units). One fills the box, the other wraps it.
Where is this useful?
Packing boxes, storage tanks, dice, ice cubes, and any object close to a perfect cube where you need capacity or material.