Cube Volume and Surface Area Calculator
Enter the side length of a cube to calculate its volume, surface area and space diagonal.
Cube Volume and Surface Area Calculator
Calculate the volume, total surface area and space (interior) diagonal of a cube from its side length.
This calculator provides an estimate for general informational purposes only. It is not a substitute for professional financial, mechanical or engineering advice.
A cube's volume is its side length cubed, its surface area is six times the side length squared (six equal square faces), and its space diagonal is the side length times the square root of 3.
Example
- With the default values shown above, this calculator returns: Volume ≈ 64.00; Surface Area ≈ 96.00; Space Diagonal ≈ 6.93.
Frequently Asked Questions
What is the formula for a cube's volume?
Volume = side length cubed (side³).
What is the space diagonal?
The space diagonal runs from one corner of the cube through the interior to the opposite corner, and equals the side length multiplied by √3 (≈ 1.7320508).