Axis Scale
Modify > Transform > Axis Scale - Much like CAD tools, the “Axis...” tools work in a specific sequence. For Axis Scale, the sequence is that you pick either the point you wish to scale uniformly about or draw a line that will be used as the origin of the scale as well as the dimension you wish to change the size of.
Example: Scaling Imported Objects
Often for a project we need to import objects from other 3D software and that can lead to scaling issues. We needed a 22” LCD monitor for a scene, but bringing in this model has lead to a grid size of 50 m and a monitor over half a kilometer wide.
Using Axis Scale and measuring the diagonal of the screen gives a size of roughly 578 m. Entering a value of 22” in the Numeric panel and making sure the Uniform toggle is on will bring our whole monitor down to the correct size.