There’s not a lot as frustrating as trying to look at an image on Facebook (or any other network) that’s the wrong size. By the time I blow it up big enough to see it, it’s too blurry. To combat that, here are some exact dimensions to help you avoid that trap, and not just for Facebook.
It’s my Social Media Image Cheat Sheet
This list will give you the specific information you need to upload photos to various social media sites.