This tutorial goes through setting up grid settings and scale in 3ds Max and Maya, and Unreal Engine ready to ensure your assets import correctly to the relevant scale.
This documents outlines the process around setting up the units in 3ds Max and Maya to ensure your scale is correct when exporting assets from these 3D packages into Unreal Engine.
One important element of scale to make note of before setting up is that 1uu (Unreal Unit) =1cm in real world scale.
First, we need to set the working units in Maya to centimeters.
Next is to set up the Maya grid.
Go to Menu Bar > Customize > Unit Setup and change the units to Metric > Centimeters
Go to System Unit Setup > System Unit Scale > 1 Unit = 1.0 Centrimeters
Inside Unreal Engine 4 make sure that Measuring Tool Units are set to centimeters. It should be set like this by default.
Go to Edit > Editor Preferences
Under Level Editor > Viewports > Look and Feel: Measuring Tool Units > Centimeters
That should be it, you are ready to go!
Check out some of the other great tutorials on CGHero.