Sphere surface area Calculator

How to calculate sphere surface area

This tool calculates sphere surface area from Radius. Enter each quantity in its labelled field, then use the formula below to check the calculation.

Formula

4 × π × radius²

Worked example

Radius

3

Applying the formula to these values gives 113.097335529 square units.

What should I check?

Find the area, perimeter, surface area or volume of common shapes. Use consistent length units: metres produce square metres for areas and cubic metres for volumes.

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