Rectangular Prism Surface Area Calculator

How the calculation works

Surface area = 2 × (length × width + length × height + width × height).

Worked example

With length 2 m, width 3 m, height 4 m, surface area is 52 m².

Assumptions and limits

Closed rectangular box, including top and bottom. All dimensions are in meters. Open-top containers, thickness and overlap are excluded.