Cuboid Surface Area Calculator
Result
Surface Area94.0000
↗ Math
Cuboid Surface Area Calculator Calculate the surface area of a cuboid (rectangular prism) from its length, width, and height. — free online calculator.
Formula
Surface area=2(lw+lh+wh)
- Cuboid surface area calculator. Apply the geometric relationship below and use the worked example to verify the setup.
- The main inputs are Length, Width, Height. Enter them in the units and format shown in the calculator.
- Keep comparable quantities in compatible units whenever the formula combines or compares them.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Cuboid Surface Area
Inputs
- Length: 5
- Width: 4
- Height: 3
For l=4, w=3, h=2: A = 52.
Sample result: Calculating…
Frequently asked questions
What does the Cuboid Surface Area calculate?
Add the areas of all six rectangular faces.
Which values should I enter?
Enter Length, Width, Height using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: Surface area=2(lw+lh+wh).
Why might my result differ from another source?
Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.