Volume of a Cube Calculator

Use this calculator to find the volume of a cube when you know its side length. Volume is the space inside the cube (in cubic units).

In the diagram, each edge is labeled a.

Step-by-step method

1. Identify what is given.
2. Write the formula.
3. Substitute the value and calculate the volume.

Formula:

Example 1: a = 4

Step 1 - Identify what is given.

In this problem: The given side length is a = 4.

Step 2 - Write the formula.

In this problem: Use the cube volume formula: V = a³.

Step 3 - Substitute the value and calculate the volume.

In this problem: Substitute a = 4: V = 4³ = 64.

Final answer: V = 64

Example 2: a = 2.5

Step 1 - Identify what is given.

In this problem: The given side length is a = 2.5.

Step 2 - Write the formula.

In this problem: Use the cube volume formula: V = a³.

Step 3 - Substitute the value and calculate the volume.

In this problem: Substitute a = 2.5: V = 2.5³ = 15.625.

Final answer: V = 15.625