- The best Facebook Feed image size is 1440×1440 px (1:1) or 1440×1800 px (4:5 vertical).
- Facebook Stories ads require a 9:16 image at 1440×2560 px with top and bottom safe zones.
- Facebook Reels overlay ads work best at 1080×1080 px within a 1:1 to 1.91:1 ratio.
- All Facebook image placements accept JPG or PNG with a 30 MB file size limit.
- Smart Resize in Coinis Revise adapts one master image to every placement in seconds.
TL;DR: The recommended Facebook Feed image ad size is 1440×1440 px (1:1) or 1440×1800 px (4:5 vertical). Stories need 9:16 at 1440×2560 px. Reels overlays start at 1080×1080 px. All placements take JPG or PNG up to 30 MB.
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Why Facebook Ad Size Matters
The right dimensions keep your ad sharp, full-bleed, and on-brand. The wrong ones get your creative cropped, distorted, or outright rejected before anyone sees it.
How image dimensions affect ad performance
Facebook crops images that fall outside the expected aspect ratio for a placement. Upload a landscape photo to a vertical Stories slot and your product gets clipped. Your headline disappears. Your CTA button overlaps your subject.
Starting with the correct dimensions prevents that. It also signals to Facebook's delivery system that your creative is ready to show, not something to downscale and guess about.
Why aspect ratio impacts mobile and desktop display
The vast majority of Facebook users scroll on mobile. Vertical formats, 4:5 and 9:16, fill more screen real estate than square or landscape images. More screen means more attention.
Desktop still matters for older demographics and B2B audiences. The 1:1 square format renders cleanly on both. That is why Meta lists it as the universal starting point for Feed campaigns.
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Recommended Facebook Ad Sizes by Placement
Each Facebook placement has its own spec. Here is what Meta's Ads Guide documents directly.
Facebook Feed image ads (optimal and minimum sizes)
For Facebook Feed, Meta's Ads Guide recommends two formats:
- 1:1 square: 1440×1440 px recommended. Minimum 600×600 px.
- 4:5 vertical: 1440×1800 px recommended. Minimum 600×750 px.
The supported aspect ratio range for Feed image ads runs from 1.91:1 to 4:5. Facebook applies a 3% tolerance to the ratio, so minor deviations pass. Anything beyond that gets auto-cropped or rejected.
The 4:5 vertical format fills more of the mobile feed. That extra vertical space is free real estate. Use it.
Facebook Stories image ads
Stories are fullscreen and vertical. The required format is 9:16.
Meta's documentation recommends 1440×2560 px for Facebook Stories ads. The minimum accepted width is 500 px. Always target the recommended resolution. Low-res images look blurry on modern high-density screens and can undermine trust before the user reads a single word.
Safe zones are critical here. Keep roughly 250 px clear from the top edge and 340 px clear from the bottom edge. Facebook's UI places the profile picture, ad label, and CTA button in those zones. Any text or logo you place there will be covered.
Facebook Reels overlay ads
Reels overlay ads appear as static banner elements sitting over Reels content. They use a horizontal or square layout, not the full-screen vertical format of Stories.
The supported aspect ratio range is 1:1 to 1.91:1. Meta recommends a minimum of 1080×1080 px. Maximum file size is still 30 MB.
Safe zone guidance for Reels overlays: keep 14% clear at the top edge, 35% clear at the bottom, and 6% clear on each side. The Reels UI is busy. Your creative needs breathing room.
Aspect ratio flexibility across placements
Facebook lets you upload multiple image ratios to the same ad set. The platform picks the best fit for each placement automatically.
That flexibility is useful. It is not a shortcut. Uploading only one ratio and letting Facebook crop the others still leads to cropped subject matter and misplaced text. The right approach is one correctly sized asset per placement.
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Technical Requirements and Best Practices
Get the technical details right before you upload. Rejections add delay and burn time you do not have.
File type and size limits
Facebook accepts JPG and PNG for image ads. The maximum file size is 30 MB across Feed, Stories, and Reels placements. PNG preserves sharp edges and crisp text. JPG compresses better for photographic backgrounds. When in doubt, PNG keeps quality higher.
Minimum and maximum dimensions
Never upload below the minimum. Facebook either rejects the image or scales it up, which creates visible quality loss.
| Placement | Minimum | Recommended |
|---|---|---|
| Feed (1:1) | 600×600 px | 1440×1440 px |
| Feed (4:5) | 600×750 px | 1440×1800 px |
| Stories (9:16) | 500 px wide | 1440×2560 px |
| Reels overlay | 1080×1080 px | 1080×1080 px |
Safe zones and text placement
Safe zones are non-negotiable. Facebook overlays profile pictures, call-to-action buttons, ad labels, and caption bars directly onto your image. Text or logos placed inside those zones go invisible.
Design with safe zones in mind from the first pass. Reworking a finished image because the headline sits behind a CTA button takes far longer than planning the layout correctly up front.
When to use each aspect ratio
Use 4:5 vertical for Feed when maximizing mobile screen space. Use 1:1 square when you need one asset that works cleanly across both Feed and Reels overlays. Reserve 9:16 for Stories placements only. Do not use 9:16 images in Feed campaigns. Facebook will crop them aggressively.
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How to Resize Your Images for Multiple Placements
Running ads across multiple placements means managing multiple sizes. Doing that manually is slow and creates inconsistency across creatives.
Using Smart Resize to adapt one image across placements
Coinis Revise includes Smart Resize. You start with your master image at any resolution. Smart Resize adapts it to any target aspect ratio. The AI repositions the subject, fills new canvas areas intelligently, and outputs a clean result.
One source image. Every placement covered. No guesswork about what gets cropped.
Creating image sets without losing quality
Smart Resize outputs at the recommended resolution for each format. You are not starting from a downscaled file. The 1:1 export for Feed and the 9:16 export for Stories both come out at full resolution.
That matters. Low-quality exports look unprofessional in the feed and reduce ad performance. Start sharp and stay sharp.
Automating resize for bulk campaigns
Running multiple ad sets across different audiences or products? Coinis Bulk Launcher lets you pair your resized variants with campaign parameters and push everything at once. Build the master creative in Image Ads, resize with Smart Resize in Revise, and launch across campaigns in a single workflow.
No manual file management. No switching between tools for each placement. One process, all placements, ready to go.
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Or skip the steps.
Coinis Revise edits any ad image with AI. Move text. Change text. Swap colors. Erase objects. Translate to any language. One click each.
No design skills. No Photoshop. One click.
15 AI tokens a month. No credit card.
Frequently Asked Questions
What is the best image size for a Facebook Feed ad?
Meta recommends 1440×1440 px for a 1:1 square format or 1440×1800 px for a 4:5 vertical format. The 4:5 vertical takes up more mobile screen space and often performs stronger on mobile feeds. Minimum accepted sizes are 600×600 px (1:1) and 600×750 px (4:5).
What size do Facebook Stories ads need to be?
Facebook Stories ads require a 9:16 aspect ratio. Meta recommends 1440×2560 px at full resolution. Keep the top 250 px and bottom 340 px clear of text and logos because Facebook's UI elements overlay those zones.
Can I use the same image for all Facebook placements?
You can upload multiple ratios to one ad and let Facebook pick the best fit per placement. But uploading only one ratio and relying on auto-crop typically cuts off key visual elements or misplaces text. Creating a correctly sized asset per placement gives you the most control.
What file formats and size limits does Facebook require for image ads?
Facebook accepts JPG and PNG formats for image ads. The maximum file size is 30 MB across all placements including Feed, Stories, and Reels overlays.