Volume Calculator
Calculate volume of cylinders, tanks, pipes, spheres, and cubes. Perfect for engineering, construction, and liquid capacity calculations.
Volume Calculator
Volume Results
Enter dimensions to calculate volume
About the Volume Calculator
Our free volume calculator finds the volume of cylinders, rectangular tanks, pipes, spheres, and cubes. Enter radius, height, length, width, or side length and get volume in cubic metres, litres, gallons, and cubic feet. Use it for water tanks, pools, containers, and materials. Each shape uses the standard formula (e.g. cylinder = πr²h, sphere = 4/3 πr³). For area of 2D shapes use our area calculator. For concrete volume try our concrete calculator.
Frequently Asked Questions About Volume
How is cylinder volume calculated?
Volume = π × radius² × height. Enter radius and height in the same units (e.g. metres) for cubic metres, or use cm for litres (1 L = 1000 cm³).
Can I get volume in litres or gallons?
Yes. Results are shown in cubic metres, litres, gallons (US), and cubic feet so you can use them for tanks and pools in any region.
What is the volume of a sphere?
Volume = (4/3) × π × radius³. Select "Sphere" and enter the radius. The calculator gives the result in your chosen units.
How the Volume calculator works
This free volume calculator runs entirely in your browser using standard mathematical formulas. Enter your figures, tap Calculate, and results update instantly — no signup required.
Figures are estimates for general information. Always verify important decisions with a qualified professional where relevant.
- Input your values using the fields above (numeric keypad on mobile).
- Results use precise floating-point arithmetic rounded for display.
- Refresh or change inputs and recalculate anytime.
Worked example
- Choose typical values for a common volume scenario.
- Enter those values in the calculator fields above.
- Tap Calculate and compare the on-screen result with the expected formula outcome.
- Adjust one input at a time to see how the result changes.