Rectangular Prism Volume Calculator
Find the volume, surface area and space diagonal of a box or cuboid from its three dimensions. Enter length, width and height to see volume, surface…
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Find the volume, surface area and space diagonal of a box or cuboid from its three dimensions. Enter length, width and height to see volume, surface area and space diagonal when you calculate.
Worked example
Example calculated from the starting values. Enter your own values and press Calculate to get your result.
With the default inputs (length = 5, width = 3, height = 2), the results are: volume 30.000; surface area 62.000; space diagonal 6.164.
Quick reference: length vs result
Reference table based on the example values; it is not your calculation result.
| Length | Volume | Surface area | Space diagonal |
|---|---|---|---|
| 2.5 | 15.000 | 37.000 | 4.387 |
| 5 | 30.000 | 62.000 | 6.164 |
| 10 | 60.000 | 112.000 | 10.630 |
| 25 | 150.000 | 262.000 | 25.259 |
| 50 | 300.000 | 512.000 | 50.130 |
| 100 | 600.000 | 1,012.000 | 100.065 |
Frequently asked questions
What formula does this calculator use?
Volume = l × w × h; Surface area = 2 × (l × w+l × h+w × h); Space diagonal = sqrt(l^2+w^2+h^2). Variables: l = length, w = width, h = height.
What do I need to enter?
You need length, width, height. Results update as you type.
What is an example result?
With the default inputs (length = 5, width = 3, height = 2), the results are: volume 30.000; surface area 62.000; space diagonal 6.164.
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