Sphere Area Calculator
This free online calculator will help you to find the area of a sphere surface.
Using this online calculator, you will receive a detailed step-by-step solution to your problem, which will help you understand the algorithm how to find sphere surface area.
Calculation of Sphere Area
Enter the value of radius
Entering data into the sphere area calculator
You can input only integer numbers or fractions in this online calculator. More in-depth information read at these rules.
N.B. In online calculator you can use the value in the same units of measurement!
Theory. Sphere Area
Sphere is the set of points that are all the same distance r from a given point in space. This distance is called the radius of the sphere.
The surface area formulas of a sphere is 4 times radius squared multiplied by π.
Surface area formulas of a sphere
A = 4 π R2
where A - the surface area of a sphere,
R - radius,
π = 3.141592.
You can input only integer numbers, decimals or fractions in this online calculator (-2.4, 5/7, ...). More in-depth information read at these rules.
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