Cube Volume Calculator
Calculate the volume and surface area of a cube from its side length in any unit, free and instant in your browser.
100% FreeRuns in your browserBasic
Enter Values
Shape
Enter your values and press Calculate to see results.
How to use this calculator
- Enter the side length.
- Press Calculate for the volume.
How it works
A cube has equal sides, so its volume is side × side × side (side³).
Worked example
Side 2 m. Volume = 2³ = 8 m³.
Frequently asked questions
What if the sides are different lengths?
Then it isn't a cube — use the rectangular prism (box) volume calculator, which takes length, width and height separately.
How do I get litres from m³?
Multiply cubic metres by 1,000. So 8 m³ = 8,000 litres.
Related tools
- Sphere Volume Calculator
- Cylinder Volume Calculator
- Cone Volume Calculator
- Circle Area Calculator
- Rectangle Area Calculator
- Triangle Area Calculator
Explore more in Geometry, Shape, Area & Volume.
Cite this tool
Zerdly. (2026). Cube Volume Calculator. Retrieved from https://www.zerdly.com/tools/cube-volume-calculator/
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.



