Cube Volume and Surface Area Calculator
Calculate the volume, surface area and space diagonal of a cube from the length of one side. Enter side length to see volume, surface area and space…
8 of 8 free uses remaining today
Calculate the volume, surface area and space diagonal of a cube from the length of one side. Enter side length to see volume, surface area and space diagonal when you calculate.
Worked example
Example calculated from the starting values. Enter your own values and press Calculate to get your result.
With the default inputs (side length = 4), the results are: volume 64.000; surface area 96.000; space diagonal 6.928.
Quick reference: side length vs result
Reference table based on the example values; it is not your calculation result.
| Side length | Volume | Surface area | Space diagonal |
|---|---|---|---|
| 2 | 8.000 | 24.000 | 3.464 |
| 4 | 64.000 | 96.000 | 6.928 |
| 8 | 512.000 | 384.000 | 13.856 |
| 20 | 8,000.000 | 2,400.000 | 34.641 |
| 40 | 64,000.000 | 9,600.000 | 69.282 |
| 80 | 512,000.000 | 38,400.000 | 138.564 |
Frequently asked questions
What formula does this calculator use?
Volume = s^3; Surface area = 6 × s^2; Space diagonal = s × sqrt(3). Variables: s = side length.
What do I need to enter?
You need side length. Results update as you type.
What is an example result?
With the default inputs (side length = 4), the results are: volume 64.000; surface area 96.000; space diagonal 6.928.
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