Hello
For those how want to make his design for Facebook cover image or profile and he didn't know the dimensions for all this , here i will give the size and dimension for the image of social network.
Facebook Dimensions
Facebook Cover photo: 851 x 315
Facebook Profile photo: 180 x 180
Twitter Dimensions
Twitter Header image: 520 x 260
Twitter Profile image: 81 x 81
Google+ Dimensions
Google+ Cover photo: 2120 x 1192
Google+ Profile photo: 270 x 270
LinkedIn Dimensions
LinkedIn Cover photo: 646 x 220
LinkedIn Profile photo: 100 x 60
Pinterest Dimensions
Pinterest Profile Photo: 160 x 165
Instagram Dimensions
Instagram Profile Photo: 110 x 110
YouTube Dimensions
YouTube Cover Art: 2560 x 1440
YouTube Cover Art Safe Area: 1546 x 423
