I aim to keep this as up-to-date as feasible, however Facebook has an unpleasant practice of making unannounced adjustments then rolling them out progressively to users so that not everyone gets them simultaneously. If you've seen something that's changed, please let me understand in the comments so I can investigate as well as upgrade as required.
Facebook Profile Picture Size 2018
Facebook profile Image Dimension
The profile Picture is the smaller sized, square at the bottom that's to the left of the cover picture. It made use of to overlay the cover photo's bottom left corner, but in the current format, it has been relocated to its own place in the leading left of the page.
Your Page's profile photo:
Display screens at 170x170 pixels on your Page on computers, 128x128 pixels on smartphones and 36x36 pixels on the majority of function phones
For profile pictures and also cover photos with your logo or message, you may obtain a much better outcome by utilizing a PNG documents.
Bear in mind that your Web page's profile picture will be cropped to a round shape in advertisements and posts, yet will remain the exact same square form when people see your Page.
Profile Photo on the Timeline
The profile picture that appears alongside your name on comments and also messages is the same image yet is immediately reduced to 40px by 40px.