ConvertOnlineSphere Surface Area Calculator
(radius)
units
square units
How to use this Sphere Surface Area Calculator 🤔
- Enter ✎ value for radius (r).
- As soon as you enter the required input value(s), the Sphere Surface Area is calculated immediately, and displaed in the output section (present under input section).
Formula
To calculate the sphere surface area, you can use the following formula.
\(A = \) \(4πr^2\)
where
Calculation
Once you enter the input values in the calculator, the output parameters are calculated.
Examples
The following examples cover how to calcualte the Surface Area when radius is given.
1. What is the Surface Area of Sphere whose radius is 20 units?
Answer
Given:
- radius, r = 20 units
The formula to find the Surface Area of a Sphere is:
A = \(4πr^2\)
Substitute given values in the above formula.
A = \(4*π*20^2\)
A = 5026.55 square units
∴ Surface Area, A = 5026.55 square units
2. What is the Surface Area of Sphere whose radius is 1 units?
Answer
Given:
- radius, r = 1 units
The formula to find the Surface Area of a Sphere is:
A = \(4πr^2\)
Substitute given values in the above formula.
A = \(4*π*1^2\)
A = 12.57 square units
∴ Surface Area, A = 12.57 square units