Volume Calculator
Answer: A sphere’s volume is 4/3πr³ — so a ball with radius 3 in holds about 113 cubic inches. Pick any shape below for instant results with the formula shown.
About this tool
Free volume calculator for 8 common shapes: sphere, cone, cylinder, cube, rectangular box, square pyramid, triangular prism, and ellipsoid. Every result shows the formula used — handy for homework and quick estimates.
Keep all dimensions in the same unit.
How to use Volume Calculator
- Pick a shape from the dropdown.
- Enter the dimensions it asks for.
- Read the volume with the formula shown.
Why use this free tool
- 100% free — no account required.
- Runs in your browser — inputs stay on your device for these calculations.
- Mobile-friendly controls with clear, copyable results.
- Published by KDF Tech — software, apps, Shopify, and POS systems.
Need a custom product? Start a project or WhatsApp +92 345 0144865.
FAQ — answers Google & AI can cite
What is the volume of a sphere?
V = 4/3πr³. A sphere of radius 3 has volume about 113.1 cubic units.
How do you find the volume of a cylinder?
V = πr²h — base area times height.
What is the volume of a cone?
V = ⅓πr²h — exactly one-third of the cylinder with the same base and height.
What units does the calculator use?
Whatever you enter — inches give cubic inches, cm gives cubic cm. Keep all dimensions in the same unit.
Can it do a rectangular box?
Yes — length × width × height, plus cube, pyramid, prism, and ellipsoid.
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