Here’s some guide in creating image with respective sizing for Facebook Pages. Using the best-fit image size help Pages administrator create the photo that able to focus their message for their fans.
Cover Photo is best fit with rectangle image size 851 pixel width x 315 pixel height
Timeline Photo is best fit with square image size 504 pixel width x 504 pixel height
Profile Picture is best fit with square image size 160 pixel width x 160 pixel height
