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Home/Math Calculators/Surface Area Calculator

Surface Area Calculator

Calculate surface area of 3D shapes

Shape

Side length (a)

Result

Surface Area150

Formula6a²

Math

View All Math Calculators →

Written by the EachTools Team

Last updated: January 2026

How Surface Area Is Calculated

Surface area is the total area of all faces of a 3D object. Different shapes have different formulas.

Steps

Select the 3D shape.
Enter the required dimensions.
View the surface area in square units.