Facebook header image size for timeline

This is the big picture (also known as Facebook cover photo) for Facebook’s timeline.

Facebook-Cheat-Sheet-2016Must be at least 399 x 150 pixels and loads fastest as an sRGB JPG file that’s 851 x 315 pixels. Displayed:
Width: 828px
Height: 315px
(For smartphones 640 x 360 px)

Facebook event image sizes

You can use your standard 851×315 pixel header image. However, Facebook scales and crops it to 785×295 pixels.
Width: 785px
Height: 295px

Facebook event news feed update (recommended design)
Width: 1200px
Height: 628px

Facebook upcoming events dimensions
Width: 150px
Height: 100px

Facebook group cover photo

Width: 801px
Height: 250px

Application icons for timeline view

These are the icons that are displayed on a fan page that has Facebook timeline enabled. If your picture exceeds these limits, your icon will be resized and converted.
Width: 111px
Height: 74px
Maximum file size: 5MB

Facebook application favicon size

This is the tiny icon that is being displayed on the left hand side of your news feed, where the applications that you use are.
Width: 16px
Height: 16px

Facebook milestone picture size

This is the size you use for milestone pictures such as company’s foundation date. This is also the size for starred (highlighted) posts. The image in the post will be scaled down accordingly, if it exceeds the limits.
Width: 843 pixels
Height: 403 pixels

Profile picture for timeline pages

Recently updated sizes for timeline. The new width and height are 180 px (displayed as 160 x 160 pixels on computers and 140 x 140 on smartphones). The profile image that appears next to your name on comments and posts on timeline will be automatically scaled down to following:
Width: 32px
Height: 32px
It’s extremely important to choose a picture that can be scaled down as the profile pictures that are displayed on timeline posts are really small. Best practice is to choose your logo.

Thumbnail

The image that is displayed next to the link when you click like or share something.
Width: 470px
Height: 246px

Facebook App Center Cover

The cover image for the app center, but it is partly covered by the app center icon image.
Width: 800px
Height: 150px

Facebook App Center icons

This is the icon that covers the app center. Attention: This partly covers your App Center cover image.
Width: 16px
Height: 16px

The square-shaped icon on detail pages, hovercards:
Width: 1024px
Height: 1024px

Facebook App Center Web Banners

This is the image that goes to the left of your screenshots in Facebook App Center.
Width: 155px
Height: 100px

Displayed in the Your Games section of Facebook
Width: 1200px
Height: 627px

Homepage editor pick (optional, used only if selected)
Width: 1848px
Height: 628px

Facebook App Center Mobile Banners

MDPI (240 x 480px resolution phones)
Width: 136px
Height: 88px

HDPI (480 x 800px resolution phones)
Width: 204px
Height: 132px

XHDPI (640 x 960px phones and up)
Width: 272px
Height: 176px

Facebook App Center 3 Screenshots

These are the screenshots in Facebook App Center.
Width: 320px between 2048px
Height: 320px between 2048px

Facebook Mobile App news feed

Recommended image size:
Width: 1200px
Height: 628px

Facebook Offers

Headline text: 90 characters
Terms and conditions text: 900 characters
Recommended image size: 1200 x 628 px

Facebook page

The usable area of your brands Facebook page
Width: 810px
Height: Unlimited

Uploaded images

This is the maximum size of the image you can upload.
Width: 2048px
Height: 2048px

Pinned post picture size

This is the size of the picture of your pinned post. Will not be scaled down so that smaller dimension matches 403 pixels. Facebook will take the centre of the image and cut it out accordingly. You can later adjust the horizontal (landscape images) or vertical (portrait images) position of the picture.
Width: 403px
Height: 403px

Pictures displayed in Facebook

This is the maximum size of the image as shown in slide show or album.
Width: 960px
Height: 720px

Facebook Ad Canvas

Ads to send people to the important sections of your website.

Picture in the ad:
Width: 1200px
Height: 628px
Text in ad:
Header: 25 characters
Body copy: 90 characters
Link description: 30 characters
(Your image may not include more than 20% text)

Facebook Ad Carousel Format

Showcase 3-5 images and links within a single advert unit to direct people to specific locations on your web site.

Picture in the ad:
Width: 600px
Height: 600px
Text in ad:
Header: 40 characters
Body copy: 90 characters
Link description: 20 characters
(Your image may not include more than 20% text)

Facebook status update

Status update length: 63,206 characters
Comment length: unlimited

Facebook Video Size

The maximum size of vide you can upload
Size: 1.75GB
Length: 45 minutes
Source