What size is a Facebook cover photo?
Facebook cover photos display at 820×312 pixels on desktop and 640×360 on mobile. Upload at 820×462 to ensure it looks good on both devices.
Why does my Facebook cover get cropped differently on mobile?
Facebook shows different portions on desktop vs mobile. Keep key content in the center 640×312 safe zone to ensure it's visible on all devices.
What file format is best for Facebook covers?
Use JPG for photos (under 100KB for fastest loading) and PNG for graphics with text. Facebook compresses images, so upload at the highest quality possible.