Rectangular Prism Surface Area Calculator

Calculate the surface area of a rectangular prism by entering its length, width, and height.

Input Parameters

Calculation Results

Calculation Formula

Surface Area (SA) = 2(LW + LH + WH)

Where:
L = Length
W = Width
H = Height

Rectangular Prism Surface Area Calculator Usage Guide

Learn how to use the Rectangular Prism Surface Area Calculator and its working principles

How to Use the Calculator

  1. Enter the length (L) of the rectangular prism in centimeters (cm).
  2. Enter the width (W) of the rectangular prism in centimeters (cm).
  3. Enter the height (H) of the rectangular prism in centimeters (cm).
  4. Click the "Calculate" button to compute the surface area.
  5. The surface area (SA) will be displayed in square centimeters (cm²).

Understanding the Formula

The surface area of a rectangular prism is calculated using the formula:

SA = 2(LW + LH + WH)

Where:

  • L = Length of the prism
  • W = Width of the prism
  • H = Height of the prism

This formula accounts for the area of all six faces of the rectangular prism, which consists of two pairs of identical rectangles.