Font size variation from image to image while using the same size in settings

[steveatvero]

I have Windows 10 the latest version of PS CC 2017. I have 2 separate files open in PS each are 500 px x 500 px.  I have entered 18 pt Trebuchet MS text in both files (images) however they are completely different size fonts. My view is set to 100% for each image.

I have saved the files as PSD, closed PS, reopened, as well, I have deleted the smaller version of the 18 pt font layer on the incorrect image and started over again - this did not fix the issue...

Not sure what to do, the images will ultimatly appear side by side on a website so the font's need to me the same size, yet one is about 1/2 the size of the other. I could scale the small one up, but I am not really interested in this as a fix.

Thanks for any perspective..

Steve

[D Fosse · Accepted solution]

A point is 1/72 inch, in other words a physical size unit. So this is one of those situations where pixels per inch (ppi) actually matters.