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Cone Volume Calculator

Volume and slant height of a right circular cone.

Compute the volume, slant height, and lateral surface area of a right circular cone from its radius and height.

Daniel Oh By Daniel Oh
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

V = ⅓ · π · r² · h; slant height ℓ = √(r² + h²); lateral area = π · r · ℓ.

In depth

Compute the volume, slant height, and lateral surface area of a right circular cone from its radius and height.