Volume of Cube Calculator
The Volume Formula Everyone Learns First
A cube is the special case where every edge is the same length, which makes its volume formula the simplest one in solid geometry: just cube the side. It's also the shape where volume and surface area are easiest to compare, since a single measurement drives both.
The Formula
Volume = Side³
Volume by Side Length
| Side | Volume |
|---|---|
| 1 | 1 |
| 2 | 8 |
| 3 | 27 |
| 5 | 125 |
| 10 | 1000 |
Doubling the side length multiplies volume by 8 (2³), not by 2 — a common source of underestimating how fast volume grows with size.
Where This Matters
- Shipping and storage — cube-shaped boxes and crates make volume estimation trivial for packing and freight calculations.
- Material science — unit cell volumes in crystallography are frequently cubic.
- Aquariums and tanks — a cube-shaped tank's water capacity follows directly from its edge length.
How to Use This Calculator
- Enter the cube's Side Length.
- Select Calculate to get the volume.
Related Calculations
For a box with unequal sides, use the Rectangular Prism Volume Calculator, or check the outer surface with the Surface Area Calculator.