Objects
AI Assistant

Volume of a Cube Calculator

Interactive 3D cube — adjust side length, see volume update live

Calculate the volume of a cube instantly with this free interactive 3D calculator. The formula is V = a³, where a is the length of any edge. Since all edges of a cube are equal, you only need one measurement. Enter the side length in the panel and watch the 3D model scale in real time — volume, surface area, and space diagonal are computed as you type.

Use this tool for real-world calculations: find the volume of dice, storage cubes, cubic containers, ice cubes, or any object with equal length, width, and height. For example, a cube with side length 4 cm has a volume of 64 cm³. The calculator also shows the surface area (6a²) and space diagonal (a√3).

Need help? The built-in AI chat assistant can explain the relationship between cubes and rectangular prisms, help with unit conversions (cm³ to liters), or walk you through homework problems step by step.

Graph

Popular Lessons

Word Problem Solver Visual Word Problem Solver Function Root Finder

FAQ

What is the volume of a cube?
V = a³, where a is the side length.
What is the surface area of a cube?
SA = 6a² (six identical square faces).
What is the space diagonal of a cube?
The space diagonal (corner to opposite corner through the center) is a√3. The face diagonal is a√2. These follow from the Pythagorean theorem applied in 2D and 3D.
How do I use this cube volume calculator?
Enter the side length in the input panel. The 3D model updates live as you adjust the value. Volume, surface area, and diagonal lengths are computed instantly. You can also ask the AI chat assistant for step-by-step explanations or help with related problems.
What are real-world uses for cube volume?
Calculating the volume of dice, storage cubes and bins, cubic water tanks, ice cubes, Rubik's cubes (internal space), and shipping containers approximated as cubes. The formula V = a³ is the simplest volume calculation since only one measurement is needed.

Related Topics

Cube Net GeneratorCylinder Volume Calculator