These are the ideal sizes for your business to use on your business profiles and accounts on Facebook, Twitter, LinkedIn, Pinterest, Instagram and Youtube (as of 2/16/21).
Facebook Business Page
Profile Photo: 180 x 180
Cover Image: 820 x 312
Post Size: 1,200 x 630
Profile Photo: 400 x 400
Header Image: 1,500 x 500
Post Size: 1,200 x 675
Company Logo: 300 x 300
Company cover Image: 1192 x 220
Post Size: 1,200 x 627
Profile Photo: 110 x 110
Post Size: 1,180 x 1,180 (1:1 ratio will work)
Pinterest:
Profile Image: 165 x 165
Image Size: Use 2:3 ratio
YouTube
Channel Profile Image: 800 x 800
Channel Cover Photo: 2,048 x 1,152
Video Size: 1,280 x 720