I am pretty new to InDesign. I have set my scale to measure in inches. Today I had an actual physical-ruler (like the one image below) lying around so I picked it up and compared it with the scale on screen in InDesign.
To my surprise, I found a difference. Note that there are 16 points/stops that makes an inch. On comparison, I found the on-screen-scale to be one point shorter than an actual physical-ruler. I assume it is not supposed to be like this, what am I missing ? I have my document size view set to actual (
Ctrl + 1).
UPDATE - Seems like I was missing the obvious concept, that the measurement in a software is just a simulation and are dependent on the resolution of the device they are used in.
I also got some very useful insights in this Photoshop article on View Print Size. Unlike InDesign, Photoshop has a menu named "Print Size" that can be used to get an almost accurate (It worked for me) size simulation provided you have a similar setting (again depends on your screen size and resolution).
Preference > Units&Rulers > New-doc-presolutions > ScreenRes. > 100 pixels/inch