A Facebook event cover is built at 1920 x 1005 px, which is close to 1.91:1. The catch is that Facebook no longer publishes a size for this slot at all, and once a cover is on an event you cannot change its crop.
Where it shows
- The header of the event page on desktop
- The top of the event in the Facebook mobile app
- The event card in the feed when someone responds or shares
- Event listings under Events near you
- The small preview inside a Messenger share
The safe zone
The cover sits above the event title, date and the response buttons, which Facebook stacks underneath rather than over the image. In the feed and in shares the same file reappears as a small 1.91:1 card with the event name printed below it, so anything set smaller than a headline disappears at that scale. Keep the event name, the date and any logo in the middle of the frame and away from the four corners, because the event page on a phone is a narrower column and pulls the sides in.
Quirks worth knowing
- Facebook no longer publishes a pixel size for the event cover, so the 1920 x 1005 px figure here comes from Buffer's social image size guide rather than from Meta.
- Facebook's own event cover help says only that you cannot edit the size of a cover once it has been added, which makes the first upload the one that counts.
- The cover picker offers a GIF alongside an upload, and that help article names no accepted file formats for the slot, so the file types field is left empty here.
- There is no published file size cap for an event cover either, which is why that field is empty rather than guessed.
- 1920 x 1005 px is roughly 1.91:1, the same shape as a link preview card, so one export covers the event header and the share card.
Common mistakes
- Uploading a 1920 x 1080 px design left over from a video, which is 16:9 and gets trimmed top and bottom inside a 1.91:1 frame.
- Setting the venue address in small type, which is legible on the event page and gone in the feed card.
- Treating the first upload as a draft, when Facebook will not let you reposition or resize the cover afterwards.
- Placing the date in a corner, where the narrower mobile event page trims it away.
What we recommend
- Build at 1920 x 1005 px and keep the title, date and time inside the central band.
- Set the type large enough to survive the feed card, which shows the same file at roughly a quarter of that width.
- Delete and re-add the cover rather than trying to nudge it, since the crop is locked once saved.
- Export in sRGB as a JPG, because Facebook gives no format guidance for this slot and JPG is the safe default across its surfaces.
Common questions
Why can't I move my Facebook event cover photo after uploading it?
Facebook's help states plainly that you cannot edit the size of a cover photo once it has been added to an event. There is no reposition handle after the fact. The only fix is to remove the cover and add a new file with the crop already correct.
What size is a Facebook event cover photo now?
Facebook stopped publishing a number for this slot, so there is no official figure to quote. The size in common use, and the one Buffer's guide lists, is 1920 x 1005 px at about 1.91:1. That shape fills the event header and survives the feed card crop.
Why does my event cover look cropped on mobile?
The event page on a phone is a narrower column than the desktop header, so a 1.91:1 cover pulls in from the sides. Text placed near the left or right edge goes first. Keep the event name and date centered and the trim costs you nothing.
Can I use a GIF as a Facebook event cover?
The cover picker does offer a GIF alongside uploading your own file. Facebook does not list accepted formats or a file size limit anywhere in that help article. If the event matters, upload a still image so you know exactly what people will see.
More answers on thumbnail, carousel and cover questions are on the FAQ.