Upload wide source
Upload a wide source — generous top and bottom padding keeps the mobile center strip clean.
Facebook Group Cover Resize
A Facebook group cover sits at 1640×856px (~1.91:1) — roughly twice the resolution of a profile cover (820×312px). The larger canvas helps, but mobile crops the top and bottom heavily and shows only the middle ~60% band; desktop, in contrast, uses almost the full width. The shared mobile/desktop safe area is therefore a narrow horizontal strip rather than a balanced rectangle. The group name, member count, and Join button cover the bottom ~25%, and mobile adds a white gradient with back/search icons in the top ~50px. This tool exports a 1640×856px JPG while previewing both the mobile center band and the bottom overlay region — cutting mobile-check time after every new cover swap.
How to use
Plan center strip + bottom overlay
Align hero visuals and logos inside the mobile center ~60% band, and skip text in the bottom ~215px (25%) where the group name overlays.
Adjust for system UI and export
Account for the top ~50px white gradient + system icons, then export as 1640×856px JPG.
When to use this tool
As your community grows, most new visitors arrive on mobile, so anchoring the cover to the mobile center strip — not the desktop full-width view — usually drives stronger join conversion.
Launching a new community and want a first-impression cover that converts mobile visitors
Rotating covers each season or campaign without re-aligning the mobile center strip every time
Locking down brand colors and logo placement once as a reusable master for a company-run group
Facebook Group Cover Image Spec Guide
Recommended sizes as of 2025. On mobile the top and bottom may be cropped, so center the most important elements.
| 1640 × 856px |
| Aspect ratio approx. 1.91:1 |
| File format: JPG, PNG |
| The group name and member count overlay the cover image. |
| Mobile viewports may crop the top and bottom edges. |
| Minimum upload width is 400px. |
| Mobile crops significantly — only the center area is visible. |
| The group name overlaps the bottom — place text at the top. |
| Desktop shows wider left-right margins. |
| Maximum file size: 30MB |
| Supported formats: JPG, PNG, GIF, WebP |
| Animated GIFs are supported in ads and posts. |
FAQ
Is the group cover a different size from the profile cover?
Yes. The profile cover is 820×312px while the group cover is 1640×856px. Even when reusing the same image, resize separately for each to ensure a clean display.
Can I put group rules or announcements on the cover?
You can, but the group name and member count overlay the lower portion. Place text in the upper or center area for better readability.
What is the minimum upload size for a group cover?
The minimum width is 400px, but uploading at 1640×856px ensures the image stays sharp on high-resolution displays.
How does the group cover get cropped on mobile?
Mobile crops the top and bottom significantly, showing only the center area. The sides also narrow slightly, so place key elements at the very center of the image.
Is there a file size limit for group cover images?
You can upload up to 30MB. In practice, a JPG of 2–5MB or less loads quickly while maintaining good image quality.
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