Surface Area Calculator
Calculate the surface area of a box, sphere or cylinder.
Result
Results are estimates for general information only and are not professional advice.
Surface area formulas
Surface area is the total area of the outside of a 3D shape. A box is 2(lw + lh + wh), a sphere is 4πr², and a cylinder is 2πr² + 2πrh. Choose a shape and enter the dimensions.
Frequently Asked Questions
What is the Surface Area Calculator?
Calculate the surface area of a box, sphere or cylinder. It runs instantly in your browser and is completely free.
Is the Surface Area Calculator free and does it require signup?
Yes. Every calculator on Calculatis is 100% free with no registration, and the values you enter are never stored.
How accurate is the Surface Area Calculator?
It uses standard, widely-accepted formulas. Results are reliable estimates for general use and are not a substitute for professional advice.