[Prints not sized correctly]

I could but I would need to scale each axis differently, not sure if that's advisable. 

 

When I make a 10mm cube I get a result that's

X Axis - 10.15mm

Y Axis - 10.22mm

z Axis - 9.94mm

 

[Prints not sized correctly]

Hello,

 

I have an ultimaker 3 and I'm using the default settings in Cura (3.4.1)

I'm designing in TinkerCad.  

My prints are not properly scaled to measurements in tinkercad.  For example a 10mm cube is off by as much as 5% or more. 

I've read conflicting information on how to adjust this and I'm not sure what's the best way to fix this problem. 

I'd appreciate any help from the community, thank you