Social Media Post Size

Instagram: 1080px X 1080 px
Facebook: 1200px X 630px
Instagram Story: 1080px X 1920px
YouTube Thumbnail: 1280px X 720px
Pinterest: 236px X 500px
Twitter: 1024px X 512px
Tumblr: 500px X 750px
Snapchat Geofilter: 1080px X 1920px

Social Media Cover Photo Size.
Facebook: 820px X 360px
Twitter: 1500px X 500px
Linkedin: 1400px X 350px
YouTube: 2550px X 1440px

Advertising Image Post Size.
Facebook Rectangle: 1200px X 627px & 336px X 280px
Facebook Square: 1080px X 1080px & 250px X 250px
Facebook Medium Rectangle: 300px X 250px

Banner Size.
Leaderboard: 728px X 90px
Skyscraper: 120px X 600px
Square Button: 125px X 125px
Half Banner: 234px X 60px
Full Banner: 468px X 60px
Blog Header Large: 1500px X 1000px
Blog Header Small: 560px X 315px
Web Banner: 2000px X 1280px
Infographic: 800px X 2000px
Email Header: 600px X 200px

Presentation.
A4: 29.7cm X 21cm

Prize List and Menus Image Size.
Prize List A4: 21cm X 29.7c m
Menu: 8.5 in X 11 in

Coupon Image Size.
6cm X 4cm

Certificate Image Size.
8.5 in X 11 in

Flyer Image Size.
A4: 21cm X 29.7cm
A5: 148mm X 210mm
DL: 110mm X 220mm
US: 8.5 in X 11 in

Resume and CVs.
A4: 21cm X 29.7cm
US: 8.5 in X 11 in

Book Covers.
Ebook: 1600px X 2400px
Wattpad: 512px X 800px

Business Visiting Cards.
8.5cm X 5cm

Logos.
1024px X 1024px