Facebook & Instagram Ad Image Sizes: The Complete 2026 Reference
The complete reference for Facebook and Instagram ad image sizes in 2026. Every placement, every aspect ratio, every file spec - with best practices for each.
Getting Facebook and Instagram ad image sizes wrong is one of the most common reasons ads underperform or get disapproved. Upload an image that's too small and Meta will upscale it (making it blurry). Upload the wrong aspect ratio and your creative gets cropped awkwardly. Upload a file that's too large and it won't upload at all. This guide is the complete 2026 reference for every Meta ad placement - bookmark it and check it before every campaign.
Facebook Feed ad image sizes
The Facebook Feed is still the highest-volume placement for most advertisers. Here are the specs that work best:
| Spec | Recommended | Minimum | Notes |
|---|---|---|---|
| Aspect ratio | 4:5 (portrait) | 1:1 (square) | 4:5 takes up more screen space on mobile and typically outperforms 1:1 |
| Resolution | 1080 × 1350 px | 600 × 600 px | Higher resolution is always better - Meta will compress |
| File size | Under 30 MB | - | Larger files may fail to upload |
| File format | JPG or PNG | - | PNG for text-heavy ads, JPG for photos |
| Text on image | Under 20% of image | - | Meta no longer rejects ads for text, but high-text images underperform |
Why 4:5 beats 1:1 on Facebook Feed
Mobile screens are portrait-oriented. A 4:5 image (1080×1350) fills more of the screen vertically than a 1:1 image (1080×1080), which means your ad takes up more visual real estate as users scroll. In our testing, 4:5 images typically get 15–30% higher click-through rates than 1:1 images on the same campaign.
Instagram Feed ad image sizes
Instagram Feed ads follow the same specs as Facebook Feed (they're served through the same Meta Ads Manager), but the aesthetic expectations are different. Instagram users expect more polished, visual-first creative.
| Spec | Recommended | Minimum |
|---|---|---|
| Aspect ratio | 1:1 (square) or 4:5 (portrait) | 1:1 |
| Resolution | 1080 × 1080 px (1:1) or 1080 × 1350 px (4:5) | 600 × 600 px |
| File size | Under 30 MB | - |
| File format | JPG or PNG | - |
Instagram Stories & Reels ad image sizes
Stories and Reels are full-screen vertical formats. This is where you need 9:16 creative - a square or portrait image will have ugly black bars above and below it, which kills performance.
| Spec | Recommended | Notes |
|---|---|---|
| Aspect ratio | 9:16 (vertical) | Mandatory for Stories and Reels - other ratios get letterboxed |
| Resolution | 1080 × 1920 px | Full HD vertical |
| Safe zone | Keep text/CTA in center 1080 × 1420 px | Top and bottom 250px may be covered by UI elements |
| File size | Under 30 MB | - |
| File format | JPG or PNG | MP4 for video |
The Stories safe zone
Instagram Stories overlay UI elements at the top (profile icon, timestamp) and bottom (CTA button, swipe-up text). If your headline or product is in these areas, it'll be covered. Keep all important content in the center 1080×1420 region of your 1080×1920 image. Most AI ad generators (including KromaSet) handle this automatically when you export for Stories.
Facebook Marketplace ad image sizes
Marketplace ads use a 1:1 square format. Resolution should be at least 1080×1080. Note that Marketplace has stricter text-on-image rules than Feed - keep text under 20% or your ad may get reduced delivery.
Facebook Right Column ad image sizes
The right column is desktop-only and shows a small square ad to the right of the News Feed. Specs: 1:1 aspect ratio, 1200×1200 px recommended (600×600 minimum). This placement is cheap but low-impact - good for retargeting, not for awareness.
Reels ad image sizes (Facebook & Instagram)
Reels ads are full-screen vertical, same as Stories. Use 9:16 at 1080×1920. Reels ads can be image or video, but video significantly outperforms image on this placement. If you're running image-only Reels ads, consider creating short video versions (even a static image with subtle motion) for better performance.
Carousel ad image sizes
Carousel ads (multiple images in one ad) use the same per-image specs as Feed: 1:1 or 4:5. All images in a carousel should be the same aspect ratio - mixing ratios creates a jarring, inconsistent experience. Recommended: 1080×1080 for each card, 2–10 cards per carousel.
Collection ad image sizes
Collection ads feature a hero image or video above a grid of product images. Hero image: 1:1 at 1200×1200 px minimum. Product images in the grid: 1:1 at 600×600 px minimum (1080×1080 recommended). Collection ads are specifically designed for ecommerce and require a product catalog connected to your Meta ad account.
Best practices for Meta ad images in 2026
1. Always design for mobile first
Over 95% of Facebook and Instagram ad impressions are on mobile. Design your creative at mobile dimensions (4:5 or 9:16) first, then adapt for desktop if needed. Don't design a beautiful 16:9 landscape creative and then crop it to 4:5 - the composition will suffer.
2. Keep text minimal
Meta no longer rejects ads for having more than 20% text, but high-text images still get reduced delivery and lower click-through rates. Keep text to a headline (5–7 words) max. If you need to communicate more, use the ad copy (the text below the image), not the image itself.
3. Show the product, not the logo
Unless you're a globally recognized brand, your logo is not what gets people to stop scrolling. Your product is. Show the product clearly, in use or in a compelling scene. Logo in a small corner is fine; logo as the main image is a waste of ad spend.
4. Test multiple creatives per campaign
Meta's algorithm optimizes creative delivery - if you upload 4–8 different creatives, it will automatically show the best-performing ones more often. Upload fewer than 4 and you're not giving the algorithm enough to work with. Upload more than 10 and the algorithm struggles to find signal. The sweet spot is 4–8 distinct creatives per ad set.
5. Use high-contrast colors
Mobile screens are small and often viewed outdoors. High-contrast creative (bright product against dark background, or vice versa) is more visible and gets more clicks. Low-contrast, muted creative disappears in the feed.
How to generate all the sizes you need from one product photo
The challenge with Meta's many placements is that you need creative in multiple aspect ratios: 4:5 for Feed, 9:16 for Stories/Reels, 1:1 for carousel and Marketplace. If you're shooting physical photography, this means composing and shooting each product multiple times - once for each ratio. If you're using AI ad generation, you generate once and export to all ratios.
Tools like KromaSet let you upload one product photo, generate a creative, and then export that same creative at 1:1, 4:5, and 9:16 - re-composing (not just cropping) for each ratio so the product and headline stay properly positioned. This cuts your creative production time from 'one shoot per ratio' to 'one generation, three exports.'
Quick reference cheat sheet
| Placement | Aspect ratio | Resolution | Notes |
|---|---|---|---|
| Facebook Feed | 4:5 | 1080 × 1350 | Best CTR on mobile |
| Instagram Feed | 1:1 or 4:5 | 1080 × 1080 or 1080 × 1350 | 4:5 for max screen space |
| Instagram Stories | 9:16 | 1080 × 1920 | Mind the safe zone |
| Facebook Reels | 9:16 | 1080 × 1920 | Video preferred over image |
| Instagram Reels | 9:16 | 1080 × 1920 | Video preferred over image |
| Marketplace | 1:1 | 1080 × 1080 | Strict text rules |
| Right column | 1:1 | 1200 × 1200 | Desktop only |
| Carousel | 1:1 or 4:5 | 1080 × 1080 or 1080 × 1350 | Keep all cards same ratio |
| Collection hero | 1:1 | 1200 × 1200 | Requires product catalog |
References & Further Reading
- AI Ad Generators for Ecommerce: How They Work & Which to Use
How AI ad generators produce creatives at the sizes specified in this guide.
- 11 Best AI Product Photography Tools in 2026 (Tested & Compared)
Tools that can export at the exact sizes Meta requires, with re-composition per aspect ratio.
- AI Background Generator for Product Photos: Complete 2026 Guide
Generate the background, then export at the right size for each Meta placement.
- Meta for Business: Image Ad Best Practices
Meta's official best practices document for image ads on Facebook and Instagram.
- Meta for Business: Aspect Ratios Across Placements
Meta's official aspect ratio reference for every ad placement.
- Shopify Blog: Facebook Ad Sizes and Specs
Shopify's regularly updated reference for Facebook ad sizes.
Need to generate ad creatives at all the right sizes? KromaSet exports to 1:1, 4:5, and 9:16 from a single product photo - free on the App Store.
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