Inkscape.org
Beginners' Questions Setting Drawing to Scale
  1. #1
    what_am_I_doing_here what_am_I_doing_here @what_am_I_doing_here

    I'm trying to resize my canvas so that an inch on the ruler on the toolbar is an actual inch if I were to measure it. I unfortunately don't know how to zoom in and out more finely than with CTRL + Scroll.

  2. #2
    Polygon Polygon @Polygon🌶

    scroll wheel works on % in the Z: value at the bottom right of the Inkscape window,

  3. #3
    Paddy_CAD Paddy_CAD @Paddy_CAD
    *

    Type "100" in the zoom control or else right-click to show a list of zoom levels and choose 100%.  This will scale the screen to match a physical ruler and the printed page.  

    Of course, this only works if Inkscape detects your screen resolution correctly.  If necessary you can manually adjust screen scaling in the Preferences dialog [shift+ctrl+p].  Select [Interface] and then adjust the Zoom correction factor.

    Screen Scaling
    Zoom Level