I attempt to maintain this as updated as feasible, yet Facebook has a nasty routine of making unannounced adjustments and after that rolling them out slowly to customers to make sure that not everyone gets them at the same time. If you've seen something that's changed, please let me recognize in the comments so I could explore and update as required.
Profile Pic Size Facebook
Facebook profile Photo Dimension
The profile Photo is the smaller sized, square at the bottom that's to the left of the cover photo. It used to overlay the cover image's base left corner, yet in the current design, it has been moved to its own area in the top left of the web page.
Your Web page's profile photo:
Screens at 170x170 pixels on your Web page on computer systems, 128x128 pixels on mobile phones as well as 36x36 pixels on the majority of feature phones
For profile images as well as cover photos with your logo or message, you could get a much better outcome using a PNG documents.
Bear in mind that your Page's profile picture will certainly be cropped to a circular form in ads and messages, but will remain the exact same square form when people visit your Page.
Profile Photo on the Timeline
The profile image that shows up next to your name on comments as well as posts coincides photo however is automatically scaled down to 40px by 40px.