Below are the guidelines for Facebook event cover photo:-

1. TheSize Of Facebook Event Cover Photo should be 1920 × 1005 pixels.

2. For the desktop news feed, use 470 × 174 pixels with a 500-character limit.

3. For the mobile news feed, use 560 × 208 pixels with a 110-character limit.

4. For the right column display, use 254 × 133 pixels with a 90-character limit.