CalcuNation

Cone Area Calculator

Find the surface area of a cone with this Cone Area Calculator. This calculates the area of the top and the circle area on the bottom of the cone.

Cone and Slant

Height:
Radius:

Fill in the height and radius of the base to determine the
surface area of a cone.

How do you find the surface area of a cone?

To find the surface area, use this Cone Area Formula:

(Pi x r2) + (Pi x r x S)

Pi = 3.1416

r = radius of the base

S = the slant length from the base to the tip of the cone
(the slant length is calculated from the height and the radius by
using the pythagorean theorem)

Example: If a cone has a height of 12 inches and a base radius of
4 inches, what is the surface area?

Calculate the slant length = 122 + 42 = S2

S = 12.6491

Cone Area = (3.1416 x 16) + (3.1416 x 4 x 12.6491)

Cone Area = 209.2194 square inches

Other Calculators of Interest:
Circle Circumference Calculator, Sphere Area Calculator, Sphere Volume Calculator

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