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I modeled a man and would like to scale him down to be exactly 6' tall (Z dimension), however I cannot find a way to do that. I know I can go to front ortho view and and use the normal scale S key to scale it, however that requires some pretty specific fine tuning in order to get it to the right dimensions.

I'd like to be able to essentially type "6" into the Z dimension (don't worry I have it setup in imperial) and have it scale the X and Y dimensions proportionally.

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As far as I know it can't easily be done on a single atomic operation unfortunately, but I generally use the following workflow.

To scale uniformly with precise absolute dimensions, in the Properties Area of the 3D View just type in the exact absolute dimension you require on the single desired axis.

Now check the resulting scaling on that axis, Blender will have calculated the appropriate factor for that vector. You can now copy-paste the value with Ctrl+C, Ctrl+V to the other axis so they all remain uniform.

Apply the scale afterwards if you desire with Ctrl+A > Scale while in Object Mode.

enter image description here

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    $\begingroup$ Simple and accurate $\endgroup$ – bertmoog Aug 5 '17 at 1:43
  • $\begingroup$ You'd think there'd just be a button you could click to lock the proportions or something similar, but this looks as good as it can get. Thank you!!~ $\endgroup$ – era_vulgera Aug 5 '17 at 22:04
  • $\begingroup$ Once you scale to the right size remember to Apply Size (Ctrl+A)... $\endgroup$ – cegaton Sep 16 '17 at 23:59
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Scale

If you hold down the Shift key while scaling, you can fine tune without too much trouble...

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    $\begingroup$ Once you scale to the right size remember to Apply Size (Ctrl+A) $\endgroup$ – cegaton Aug 4 '17 at 22:08
  • $\begingroup$ But with this way won't provide scaling factor with a way to "have it scale the X and Y dimensions proportionally" $\endgroup$ – Mr Zak Aug 4 '17 at 22:29
  • $\begingroup$ This requires eyeballing values and is not totally precise. $\endgroup$ – Duarte Farrajota Ramos Aug 4 '17 at 23:19
  • $\begingroup$ @Duarte - Glad to learn from your answers but also curious - what is not totally precise about 0.600? $\endgroup$ – Patdog Aug 5 '17 at 6:59
  • $\begingroup$ If you enter 6.0 Blender will try to match 6.0 as best as possible for the situation. If you approximate it by dragging the cursor until a value shows up in the box, it may very well be 6.002 or 5.995, and you have little control over it. In most cases it probably won't matter much, but if you are looking for numerical precision there are better ways $\endgroup$ – Duarte Farrajota Ramos Aug 5 '17 at 12:44

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