Rectangular Prism Surface Area

Enter values to compute.

Length (l) l

Width (w) w

Height (h) h

Understanding the Math

The Rectangular Prism Surface Area computes the result using fundamental principles of mathematics. Calculate surface area of a rectangular prism.

Formula Definition

Result = 2 × (l × w + l × h + w × h)

This formula is applied directly to the inputs provided above. Ensure all units are consistent (e.g., all lengths in meters) before calculation to guarantee accuracy.

Example Problem

Given:

Length (l) = 3
Width (w) = 4
Height (h) = 12

Solution:

Substitute values into the formula:

Result = 2 × (3 × 4 + 3 × 12 + 4 × 12)

Quick Notes

Double-check input units. Inconsistent units (e.g. feet vs meters) will yield incorrect results.
Calculations are performed with high-precision floating point arithmetic.