Calculators
Cube Calculator
Calculate cube volume, surface area, and diagonals from a side length locally in your browser.
Enter a side length from 0 (exclusive) to 1000000000 to see the volume (side x side x side), surface area (6 x side x side), face diagonal (side x √2), and space diagonal (side x √3). The calculation runs locally in your browser; your value is not uploaded or stored.
Find cube measurements without uploading anything.
Enter a side length from 0 (exclusive) to 1000000000 to see the volume, surface area, face diagonal, and space diagonal. Everything runs locally in your browser, so your value is not uploaded or stored.
Frequently Asked Questions
Everything you need to know about this tool, how it works, and privacy.
What does the cube calculator show?
Enter a side length from 0 (exclusive) to 1000000000. The calculator returns the volume (side times side times side), the surface area (6 times side squared), the face diagonal (side times the square root of 2), and the space diagonal (side times the square root of 3). For example, a side of 5 gives volume 125, surface area 150, face diagonal about 7.07106781187, and space diagonal about 8.66025403784.
Which formulas does the cube calculator use?
It uses volume = side x side x side, surface area = 6 x side x side, face diagonal = side x square root of 2, and space diagonal = side x square root of 3 from the Pythagorean theorem extended to three dimensions.
Which inputs are accepted?
Enter a side length greater than zero through 1000000000. Decimal values are accepted. Zero, negative numbers, non-numeric text, and values above the limit show a clear error instead of a result.
Do my numbers stay private?
Yes. The calculation and copy action run locally in your browser. CodeASystem does not upload or store the value you enter.