Profile Photo
thumb size to be 50×50 (pixels) and full size to be 150px X 150 px.
Group Avatar
ED media upload sizes
PHOTOS
Thumbnail 150 width x 150 height 1:1
Medium 320 x 240 4:3
Large 800 0 1:0
VIDEO
320 x 240 4:3
Activites player in Community 320 x 240 4:3
Single player 640 x 480 4:3
MUSIC
Activity player 320
YOU TUBE
1920 x 1080 16:9
1080 x 1920 9:16