geometry calculator

Cone Volume Calculator

Estimate the volume of a cone-shaped space or object for tanks, hoppers, funnels, decorations, and geometry exercises.

Important Use Notice

Informational calculator only. Verify important outputs independently before legal, tax, medical, engineering, safety-critical, contractual, employment, or compliance use.

Estimate

Enter job values, review the estimate, then use the decision hints before ordering or quoting.

Estimate Results

Enter values to see the result.

Formula

volume = (1 / 3) x pi x radius^2 x height

The formula uses the circular base area and scales it by the height and one-third factor.

Make sure the height is measured straight down, not along the slanted side.

Example

Radius 3 and height 5 gives volume about 47. 12

Check

Using slant height instead of vertical height
Forgetting the one-third factor in the formula

Next Step

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Cone Lateral Area Calculator

This tool works well for focused work where you only want one formula and one answer path around cone lateral area.

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Cone Slant Height Calculator

Next: cone slant height.

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Cone Surface Area Calculator

This cone surface area calculator helps when radius, slant height are already known and you want the surface area quickly.