Cover: 851 x 315
Profile: 180 x 180
Google+ / YouTube
Cover: 2120 x 1192
Profile: 250 x 250
Cover: 520 x 260
Profile: 81 x 81
Social Media Page Photo Sizes
Cover: 851 x 315
Profile: 180 x 180
Cover: 2120 x 1192
Profile: 250 x 250
Cover: 520 x 260
Profile: 81 x 81