Use this rectangular prism surface area calculator to determine the total surface area by entering the prism's length, width, and height. Apply the rectangular prism surface area formula for precise results.
L = length
W = width
H = height
Add the areas of all faces and multiply by 2 to get the total surface area.
| L | W | H | Surface Area (SA) |
|---|---|---|---|
| 2 | 3 | 4 | 52.000000 |
| 5 | 3 | 2 | 62.000000 |
| 4 | 4 | 4 | 96.000000 |
| 6 | 2 | 3 | 72.000000 |
| 3 | 5 | 2 | 62.000000 |
1. Multiply length × width, length × height, and width × height.
2. Sum these three products.
3. Multiply the sum by 2 to get total surface area.
This rectangular prism surface area calculator automatically computes total surface area using the rectangular prism surface area formula with up to six decimal places.
• Rectangular prisms have six faces, all rectangles.
• Surface area is important for painting, wrapping, and material calculation.
• Each pair of faces contributes equally.
• Used in construction, packaging, and 3D modeling.
• Formula ensures accurate measurement of total exterior area.