Geometry & Shapes
Volume Calculator
Volume: it applies the volume formula for the solid you choose. Worked through below with real figures, and the calculator repeats the working on your own inputs — free, on-device, instant.
Volume Calculator helps you find a solid's volume. Enter your shape, side, length and width and it returns the volume instantly, right in your browser with nothing uploaded.
About this calculator
Volume is easiest to get wrong in the setup, not the arithmetic. It applies the volume formula for the solid you choose. It matters whenever a shape has to be measured, cut, covered or compared and the geometry has to be right first. The worked example on this page (Volume of a box 4 m × 3 m × 2 m = 4 × 3 × 2 = 24 m³ .) shows the full substitution; the calculator above runs the same working on your own numbers, in your browser, with nothing uploaded.
How to use
- Choose the 3D shape you want.
- Fill in the dimensions for the chosen shape.
- Press Calculate to find the volume.
- Read the volume.
Why use Volume Calculator
Fast
Calculations run in your browser. No round trip to a server.
Private
Your inputs never leave your device. Nothing is uploaded.
Free
No signup, no paywall, no ads-in-results, no watermarks.
Accurate
Uses standard formulas for quick educational estimates; check critical results before relying on them.
Mobile-ready
Optimised for phones, tablets, and desktops alike.
Transparent
Honest disclaimers wherever browser limits or regional rules apply.
Common uses
Use it when comparing volumes
Use it for tank or container capacity
Use it when checking a shape's capacity
Use it for geometry homework
Use it when finding a solid's volume
Use it when sizing a cavity
Technical notes
Volume Calculator applies the volume formula for the solid you choose.
Results assume exact, idealised shapes; real-world measurement error is not included.
Because it runs locally, results appear instantly with no server round-trip.
FAQ
Which shapes can this calculate the volume of?
It covers a cube, rectangular box, cylinder, cone, sphere, and square pyramid; choose the shape, then enter its dimensions.
Do I need to fill in every field for volume?
No. Only the fields for the selected shape are used; the rest are ignored.
What units does the volume calculator use?
Use any single length unit consistently; the volume comes out in that unit cubed.
Does the Volume Calculator send my data to a server?
No. The Volume Calculator runs entirely in your browser, so nothing you enter is uploaded, stored, or shared.
Worked example
Volume of a box 4 m × 3 m × 2 m = 4 × 3 × 2 = 24 m³.