## About This Tool

The online Surface Area of a Rectangular Prism Calculator is used to help you find the surface area of a rectangular prism.

## Surface Area of a Rectangular Prism formula

The following is the calculation formula for surface area of a rectangular prism:

S = 2 × (W × L + L × H + H × W)

Where:

S = surface area of a rectangular prism

W = width

L = length

H = height