This cuboid diagonal reference table shows the space diagonal for a range of length values, assuming a width of 4 units and a height of 12 units. Every figure is computed with the same engine that powers our Cuboid Diagonal Calculator, so the numbers are exact.
| Length | Space diagonal |
|---|---|
| 0.75 units | 12.6713 |
| 1.5 units | 12.7377 |
| 2.3 units | 12.8565 |
| 3 units | 13.0000 |
| 4.5 units | 13.4257 |
| 6 units | 14.0000 |
| 9 units | 15.5242 |
| 15 units | 19.6214 |
| 21 units | 24.5153 |
| 30 units | 32.5576 |
How to use this table
Find the row closest to your length and read across to the space diagonal. For a value between two rows, the real figure sits between them — or enter your exact numbers in the Cuboid Diagonal Calculator for a precise answer.
Need a value that is not in the table? — the Cuboid Diagonal Calculator does it instantly, for free, with the formula and a worked example built in.
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