SOCIAL MEDIA IMAGE SIZES = CHEAT SHEET
The most recent image size specifications for different social media networks, including Instagram, Twitter, Facebook, LinkedIn, and more.

Personal Profile Image: 300 x 300 (Recommended)
Personal Background Image: 1584 x 396
Company Logo Image: 300 x 300
Company Cover Image: 1128 x 191 (recommended)
Shared Image or Link: 1200 x 627 (Recommended)
Profile Picture: 180 x 180 (Displays 170 x 170 on Desktop)
Business Page Profile Picture: 180 x 180 (Displays 170 x 170 on Desktop)
Cover Photo: 820 x 312
Shared Image: 1,200 x 630
Shared Link: 1,200 x 628
Event Image: 1920 x 1080 (Recommended)
Profile Picture: 110 x 110
Photo Thumbnails: 161 x 161
Photo Size: 1080 x 1080
Instagram Stories: 1080 x 1920
Youtube
Channel Profile Image: 800 x 800
Channel Cover Photo: 2,048 x 1,152
Video Uploads: 1280 x 720 (Minimum HD)
Profile Photo: 400 x 400 (Displays 200 x 200)
Header Photo: 1,500 x 500
Image from a Tweet with shared link: 1200 x 628 pixels
Tweet sharing a single image:
1200 x 675 pixels
Tweet sharing two images:
700 x 800 pixels (both images)
Tweet sharing three images:
Left image: 700 x 800 pixels
Right images: 1200 x 686 pixels
Tweet sharing four images:
1200 x 600 pixels (per image)
Four is the maximum number of images available on one Tweet
Profile Picture: 165 x 165
Pin Sizes: Ratio of 2:3 to 1:3.5
Pin Sizes: Expanded pins have a minimum width 600 pixels, so to maintain aspect ratio, 900 px is the recommended height.
Board Display: 222 x 150 pixels (large thumbnail)
Board Display: 55 x 55 (smaller thumbnail)