2018 Update: What’s the Correct Facebook Event Image Size?
Photos on the event page wall will be seen at 470 pixels wide, up to 470 pixels tall, depending on the shape photo you upload. Feel free to make them bigger (but not smaller, for best results). Both…
Checked and verified January 2, 2018: The recommended Facebook event cover photo size is 1200 x 628, same as a link share. This is a 1.91:1 ratio. I strongly ...