 # Sphere Calculator

Enter the radius and hit calculate button to calculate the volume & surface area of the sphere by using sphere calculator

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## Sphere Calculator

Sphere calculator is a mathematical tool that is used to calculate the volume and curved surface area of a sphere with the help of the given radius.

## What is Sphere?

A sphere is a geometrical shape that has equidistance from the center to every point of the circle. It is a completely round shape and 3D shape.

Formula:

Volume of sphere = (4/3) × π × r3

## What is a curved surface area?

For a sphere, the curved surface area is the entire surface area of the sphere. It can be calculated by multiplying 4π (where π is approximately 3.14159) by the square of the radius of the sphere.

Formula:

Curved Surface area of sphere = 4 × π × r2

## How to find the volume and surface area of a sphere?

Example 1:

Determine the volume of the sphere of radius = 3

Solution

Step 1:

Volume of sphere = (4/3) × π × r3

Step 2:

Volume of sphere

= (4/3) × (3.142856) × (3)3

= (4/3) × (3.142856) × (27)

= 113.04

Example 2:

Determine the curved surface area of the sphere of radius = 13

Solution

Step 1:

Curved surface area = 4 × π × r2

Step 2:

= 4 × (3.142856) × (13)2

= 4 × (3.142856) × (169)

= 2122.6

Here are a few more results of the volume of a sphere and the curved surface area of the sphere.

 Radius The volume of a Sphere The curved surface area of a sphere 4 267.95 200.96 7 1436.0 615.44 9 3052.1 1017.4 13 9198.1 2122.6 17 20569 3629.8 19 28716 4534.2 21 38773 5539.0 23 50939 6644.2

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