As all the various social media platforms introduce their own versions of cover images, headers, avatars, etc. it’s getting very hard to keep up with all the different sizes! The following breakdown should help you create correctly sized images for all your social media accounts (all dimensions are measured in pixels):
Profile – 160×160
Cover – 851×315
Profile – 128×128
Header – 1200×600
Background – The twitter background will show up differently at various resolutions. If you’re going full width, plan on sizing your background image to at least 640px, although ideally it should be around 1280×1024.
Google+
Profile – 275×275
Cover – 940×180 (some cropping may occur)
You can also display five thumbnail images in the cover photo area sized to 112×112 each. This is ideal if you want to show off a portfolio or several photos.
Avatar – 160×160
