There are so many people out there using the wrong photo dimensions!
Many assume that one photo translates to each platform. This causes images to display improperly which can significantly lower your post optimization rate.
As you know, social media platforms are visually driven so your content needs to be, too! Therefore, if you have a photo that doesn’t fit (and looks bad) people will likely move on.
Follow this cheat sheet the next time you make a post or update a cover photo to stay on track (updated July 2019)
FB Profile 180 x 180 (Displays 170 x 170 on Desktop)
FB Cover Photo 820 x 312 px
FB Ad 1200 x 628px
FB Event Cover Photo 1920 x 1080px
Twitter Profile 400 x 400 (Displays 200 x 200)
Twitter Header 1500 x 500 px
Twitter Post 1024 x 512
LinkedIn Banner 1400 x 425px
LinkedIn Post 700 x 400px
Instagram Profile 110 x 100
Instagram Stories 1080 x 1920
Instagram Post 1080 x 1080px
LinkedIn Profile 400 x 400
LinkedIn Company Logo: 300 x 300
LinkedIn Background Image: 1584 x 396
YouTube Cover Photo: 2,560 x 1,440
YouTube Video Uploads: 1280 x 720 (Minimum HD)
YouTube Profile: 800 x 800
Pinterest Profile: 165 x 165
General Email Banner 600 x 200px