[Updated MAY 2018] Best Image Sizes for Social Media
Unfortunately for us, each social media network has it's own ideal image size when posting photos, or uploading profile and cover photos. Below I've outlined minimum required image sizes for the most common platforms. These are the minimum best dimensions, so if you have a photo that is bigger (but is the same ratio) that will be fine too. For example use something twice as big as what I've listed - this may prevent your images from blurring. Note that Facebook compresses images so they take up less space, so if you upload an image that is too big, you may find it displays fuzzy or blurry.
May 21 - LinkedIn profile updates
April 4 - LinkedIn post photos, LinkedIn Company logo, Facebook Group cover, Facebook Page cover, YouTube profile and cover photo, Instagram post photos, added new resources
November 30 - Facebook Group cover photo
November 22 - Instagram Stories, Facebook link previews, Facebook event cover, Facebook post photo
October 18 - LinkedIn Company profile photo and cover photo, Instagram profile photo, Pinterest profile photo
August 31 - Facebook Event cover photo
July 12 - LinkedIn background photo; LinkedIn article cover photo; Instagram landscape image issues
June 22 - Facebook Group cover photo
Horizontal or square photos always work best on Facebook. If you upload a tall picture, Facebook will crop the top & bottom and people will have to click to see the full photo.
Profile Picture: 180x180 pixels (it will display at 170x170 on desktop and 128x128 on mobile, but needs to be uploaded at 180x180)
Cover Photo: 820x310 pixels on desktop (and displays as 640x360 pixels on mobile). On mobile, Facebook will crop each side of your photo so that the middle 640 pixels are displayed - so make sure you put the most important info in the middle of your photo. To make sure the photo works in both places, upload a photo that is at least 828x360 pixels - but bigger is better!
Note: people have been reporting that cover photos look fine on mobile but are cropped funny on desktop. If your uploaded cover photo is very wide, but not much taller than the minimum requirements, each side of your photo will be cropped out on mobile. However, if your photo is also much taller than the minimum requirement, instead of cropping, Facebook may 'shrink' your photo to display more because there is more vertical space on mobile than there is on desktop.
Link Preview Photo: 1200x627 pixels - link preview photos work best as a horizontal rectangle. Remember, this is the size of the photo that Facebook is pulling from the webpage. If the photo is not big enough to display without being totally pixelated, the photo will display as a small square preview. If the photo is a square or vertical, Facebook will crop the top and bottom of the photo.
Event Cover Photo: 1920x1080 pixels
Group Cover Photo: 1,640x859 pixels
Ad Photos: varies depending on the format of your ad
Carousel: 1080×1080 pixels
Single Image: 1200x628 pixels
Slideshow: widescreen (16:9) is recommended, but you will have the ability to crop your photos to square or vertical ratios
Canvas: 1080x1920 pixels
Post Photo (single): 1200x1200 pixels for square or 1200x717 pixels for a rectangle. If your image is not 1200px tall, it will still look good on the newsfeed. If your image is not 1200px wide it will look awkward. You can upload multiple photos to a post and Facebook will arrange them into a grid.
Profile Picture: 400x400 pixels
Header Photo: 1500x500 pixels. Note that a small area in the bottom left will be covered by part of your profile picture.
Post Photo (single): 440x220 pixels minimum, but recommended size is 1024x512 pixels. You can attach up to 4 photos in a single tweet and Twitter will arrange them into a grid that is 440x220. See the slideshow below for examples.
If you attach a photo that is taller than 512 pixels, it will display in full on desktop, but will be cropped on mobile, leaving the middle pixels displayed.
Article Featured Image: 744x400 pixels
Profile Photo: 500x500 pixels
Profile Background Photo: 1584x396 pixels. Your profile photo covers up a small section on the bottom of the left portion, so avoid placing text all across the bottom of the photo or in the bottom left corner. On mobile, the photo will be cropped drastically on each side and your profile photo will cover most of the center of the photo.
Company Logo: 400x400 pixels
Company Cover Photo: 1536x768 pixels. Note that the bottom third of the photo will be covered by your business information, so don't put anything important there.
Post Photo: 550x550 pixels
Profile Picture: 160x160 pixels
Post: width of at least 1080 pixels for all photos. Note that it is no longer mandatory to have a square image on Instagram, however, images displayed on your profile grid will be cropped to display as square, so square photos are still recommended if you are focused on the look of your grid. Images that are too long or don’t have enough height may be automatically cropped by Instagram and you won’t be able to post the full image.
square: 1080 pixels
landscape: at least 566 pixels high
portrait: max 1350 pixels high
Stories: 1080x1920 pixels
Board Cover: Board cover size no longer matters, since you will select the image to display from your pins (or it will take the 3 most recent pins by default). For reference, the main image on the board will display as square.
Profile Picture: 280x280 pixels
Ideal Pin Size: width of at least 736 pixels, height of 1104-1840 pixels (anything taller will be cropped in the preview)
Profile Picture: 800x800 pixels
Cover Photo: 2560x1440 pixels