The 2020 Social Media Image Sizes Guide
The most up-to-date list of social image sizes and dimensions for Facebook, Twitter, Instagram, Google+, Pinterest, LinkedIn and Youtube.
Facebook profile picture size: 180 x 180 px ... Can have a height below 180px, but the image will not be clear. ... Consider how the image will fit with your content's title and description; If one isn't set, Facebook will try ...