I am looking to get a custom sized metal print of a photo that I cropped in Lightroom. For custom sizes, the printing software requires that I enter the height/width in inches. How can I figure this out in Lightroom?
I know that, in the crop window, I can select a certain or enter a custom aspect ratio and it will constrain the crop box to that aspect ratio. But how do I do the opposite? That is, when I free-hand crop using the crop tool, have it tell me what the aspect ratio the photo now falls into is, even if it involves decimals?
The Info Overlay (toggle "I") can be set up to show you the post-crop dimensions in pixels. The same information can be had in the Metadata panel in the Library module. If you know the pixels and the pixels per inch (ppi) at which it will be printed, the size in inches is easy math. If you really want the aspect ratio (which is long side divided by short side), do the division yourself. A 3155x3786 pixels image has a ratio of 1:1.2 or 5:6 and at 300 ppi would make a 10.517 x 12.62 inch print.
This is not a good answer.