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surface areaClassic tool

Surface Area Calculator

Calculate total surface area for a cube, sphere, cylinder or cone using any measurement unit.

Use this surface area calculator to quickly find the total outer area of common 3D shapes used in geometry, design, packaging, crafts, fabrication and classroom work. It supports cubes, spheres, cylinders and cones with one consistent measurement unit across the inputs.

The tool also shows the formula applied and the measurements used in the result. That makes it easier to double-check homework, compare solids, review geometry steps and confirm that a manual calculation is on the right track.

If you enter values in centimeters, meters, inches or feet, the answer comes back in the matching squared unit. This is practical for coating estimates, finishing material, paint coverage, external wrapping or fast math validation.

Use the same unit for every dimension. The result is returned in square units.

SummaryChoose a shape and enter the required measurements to calculate total surface area.
Total area—
Measurements used—
Formula—

Use clear inputs to get a more useful result.