Resize to Facebook Cover Size

Get the exact 851 x 315 px size Facebook recommends. Facebook shows 820 x 312 on desktop and crops the sides on phones.

851 x 315 px2.7:1 Runs on your device

Facebook Cover · Step 1 of 3 · Add your photo

Drop an image to resize

or paste with Ctrl+V · JPG PNG WebP HEIC GIF · max 25 MB

851 x 315 pxBatch ready

Processed on this device. Nothing is uploaded.

Example

Before and after

We ran this sample through the facebook cover tool above. The numbers under each image are measured from the real files.

Sample input: 2640 x 3960 px · 706 KB · JPG — **Before**2640 x 3960 px · 706 KB · JPG

Result from this tool: 851 x 315 px · 43.8 KB · JPG · 300 DPI — **After**851 x 315 px · 43.8 KB · JPG · 300 DPIThe actual file the tool made

How to

How to resize a photo to facebook cover size

1
Add a photo
From your gallery, your camera or a screenshot.
2
Fill or fit
Fill crops to 2.7:1 from the center. Fit keeps the whole photo with a border.
3
Download
A 851 x 315 px image, ready to post on Facebook.

Why this size

Facebook sizes at a glance

Facebook shows 820 x 312 on desktop and crops the sides on phones. Uploading the exact size means Facebook does not crop or re-compress your image in ways you did not choose.

The tool scales once, straight to 851 x 315, from your original pixels, so the result stays sharp. Start from a photo at least as large as 851 x 315: enlarging a small image cannot add detail. For a small old photo, the AI upscaler can redraw it larger first.

Use	Size
Cover photo	851 x 315 px
Shown on desktop	820 x 312 px
Shown on phones	640 x 360 px
Group cover	1640 x 856 px

Tips

Tips that make a difference

Start from the original photo

Use the photo from your camera or gallery, not a screenshot or a copy forwarded in a chat. Scaling down to 851 x 315 keeps it sharp; scaling up a small image makes it soft.

Uploads get compressed again

Most platforms, Facebook included, re-compress images after upload. A JPG at the exact size gives them the least to change, so colors and edges stay closer to your original.

Avoid

Common problems and fixes

The sides are cut off on phonesPhones show only the middle 640 x 360. Keep text and faces in the centre.
Text on the cover looks blurryFacebook compresses JPG covers. For covers with text or a logo, keep the design simple and the text large.
The image looks blurry after postingFacebook enlarges images that are smaller than its size, which makes them soft. Start from the original photo, at least as large as the size above.

FAQ

Facebook Cover: questions

851 x 315 pixels. Facebook shows it at 820 x 312 on desktop and crops the sides to 640 x 360 on phones.

The same 851 x 315 pixels. Keep text in the centre so it survives the phone crop.

1640 x 856 pixels. Use Resize in pixels for that size.

Only if you choose Fill and the shapes differ. Choose Fit to keep the whole photo with a border instead.

No. Resizing happens in your browser.

Checked

How we checked this page

Checked by the SizePort team on 3 October 2026.

We test the tool with sample photos before it goes live and check that the sizes on this page match what it produces. Rules and platforms change, so if something here is out of date, tell us and we will correct it.