How do I use the Sphere Surface Area Calculator?
Enter your values in the fields and the result updates instantly as you type.
Sphere Surface Area Calculator
Calculate the surface area of a sphere.
e.g., cm, m, ft, in
Results
Formula: Surface Area = 4 * π * r²
Invalid value for this calculator. Please enter valid numbers.
Frequently asked questions
What formula does this calculator use?
Surface Area = 4 * π * r²
Can I use decimal values?
Yes. Decimal inputs are supported for most calculators. Integer-based tools use rounded integer values where appropriate.
Is this calculator free?
Yes. CalcuNimble calculators are free and optimized for fast everyday use.