Frustum of a Cone – Surface Area & Volume Calculator

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Calculate the surface area and volume of a frustum of a cone (truncated cone). Enter top radius, bottom radius, and height.

Lateral Surface Area: 115.45
Total Surface Area: 207.77
Volume: 163.36
Slant Height: 5.00

Formulas: LSA = π(r₁ + r₂)l. TSA = LSA + πr₁² + πr₂². Volume = ⅓πh(r₁² + r₁r₂ + r₂²).

Frustum of a Cone

A frustum of a cone is the portion of a cone between two parallel planes. It has two circular bases with different radii .

How to Use This Calculator

  1. Enter top radius: Radius of the smaller base.
  2. Enter bottom radius: Radius of the larger base.
  3. Enter height: Distance between bases.
  4. Calculate: Click “Calculate” or press Enter.

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