Volume of a Cube Formula: How to Calculate & Examples

The volume of a cube formula is V = s × s × s = s³, where s is the edge length (side) of the cube. Because every edge of a cube is equal, the volume is simply the edge length cubed. The result is in cubic units (cm³, m³).

How to Calculate the Volume of a Cube + Example

Steps:

1. Measure the edge length (s).
2. Cube it: V = s × s × s.

Worked Example: A die shaped like a cube has an edge length of 5 cm. What is its volume?

Solution: V = s³ = 5 × 5 × 5 = 125 cm³

So the volume of the die is 125 cm³.

Why It Matters for Students

The volume of a cube is a foundational Solid Geometry topic in Grade 5–6 and is developed further in junior high. It is the basis for learning cuboids, cylinders, and other solids, and is useful for finding the capacity of boxes, cube-shaped aquariums, or packaging.

Fun fact: If the edge length is doubled (2×), the cube's volume becomes 8 times larger (2³ = 8), not just double. That is why a bigger container holds far more than it looks.

Also learn other solids: Volume of a Cuboid, Volume of a Cylinder, Volume of a Cone, and Volume of a Sphere. See also Area of a Triangle and all topics in the Mathematics hub.

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