How does unit scaling work in UE4?

Development Asset Creation
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1

I’ts 1 modeling program unit to 1 cm.

2

Hi, when I tried to imported model from old UDK project to new UE4, model scale has changed.
Is there still 1 UU = 0.75 inches? Is it already possible to change the scale unit e.g. 1uu = 1cm?

3

for what I see is in meters now… and yes, you can change it, In world properties of your level/project.

In 3ds max I work in centimeters so when I export to unreal with fbx (which is set to centimeters too) all works just fine. and for reference the Sample Character in unreal is 190cm tall.