> Quick answer: Use 1:1 (1440×1440 px) or 4:5 (1440×1800 px) for Feed placements. Use 9:16 (1440×2560 px) for Stories and Reels. All formats: JPG or PNG, 30 MB max.
Overview: Why Facebook Ad Dimensions Matter
The wrong dimensions get your ad cropped, blurred, or rejected. Per Meta's Ads Guide, each placement enforces strict aspect ratio tolerances. Submitting the right size upfront prevents automatic cropping and wasted budget.
Facebook Feed Image Ads
Recommended dimensions and aspect ratios
Facebook Feed accepts aspect ratios from 1.91:1 to 4:5. The two recommended resolutions are 1440×1440 px (1:1 square) and 1440×1800 px (4:5 portrait). Portrait takes up more mobile screen space. It tends to be the stronger default choice.
Technical requirements (file size, format)
- Minimum width: 600 px
- Formats: JPG or PNG
- Max file size: 30 MB
- Aspect ratio tolerance: 3%
Facebook Stories Image Ads
Vertical 9:16 format requirements
Facebook Stories requires a 9:16 vertical format. Recommended resolution is 1440×2560 px. Minimum width is 500 px.
Safe margin guidelines for text and UI
Keep 14% (250 px) clear at the top and 20% (340 px) clear at the bottom. Those zones cover Meta's UI buttons and CTA bars. Place your key message and logo in the middle third.
Facebook Reels Image Ads
9:16 aspect ratio specifications
Facebook Reels also uses 9:16 at 1440×2560 px recommended. Minimum width is 600 px.
Safe zones and design considerations
Reels has tighter safe zones than Stories. Per Meta's Ads Guide, reserve 14% at the top, 35% at the bottom, and 6% on each side. That bottom buffer is notably large. Reels UI overlays more of the lower screen than Stories does. Keep all critical content centered.
Instagram Feed Image Ads
4:5 aspect ratio and resolution
Instagram Feed image ads use a 4:5 portrait aspect ratio. Recommended resolution is 1440×1800 px. Minimum width is 500 px.
Technical specs and file requirements
- Formats: JPG or PNG
- Max file size: 30 MB
- Aspect ratio tolerance: 1% (stricter than Facebook Feed)
Instagram Stories Image Ads
9:16 vertical format
Instagram Stories uses 9:16 at 1440×2560 px recommended. Minimum width is 500 px.
Safe margins for UI elements
Same rules as Facebook Stories: keep 14% top (250 px) and 20% bottom (340 px) free from text, logos, and key visuals. Instagram Stories UI sits in the same zones.
Quick Dimension Cheat Sheet
Side-by-side dimension comparison
| Placement | Aspect Ratio | Recommended Size | Min Width |
|---|---|---|---|
| Facebook Feed | 1:1 or 4:5 | 1440×1440 or 1440×1800 px | 600 px |
| Facebook Stories | 9:16 | 1440×2560 px | 500 px |
| Facebook Reels | 9:16 | 1440×2560 px | 600 px |
| Instagram Feed | 4:5 | 1440×1800 px | 500 px |
| Instagram Stories | 9:16 | 1440×2560 px | 500 px |
All placements: JPG or PNG, 30 MB max.
When to use each format
Use 1:1 or 4:5 for all Feed placements. Square works across the most placements without cropping. Portrait (4:5) grabs more vertical space on mobile. Use 9:16 for Stories and Reels. One correctly sized 9:16 creative covers Facebook Stories, Instagram Stories, and Facebook Reels at once.
Need to resize an existing creative to hit these specs? That is exactly what Smart Resize in Coinis Revise handles. Upload once, output every format.
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Frequently Asked Questions
What is the best image size for Facebook ads in 2025?
For Facebook Feed, use 1440×1440 px (1:1) or 1440×1800 px (4:5 portrait). For Facebook Stories and Reels, use 1440×2560 px (9:16 vertical). All formats accept JPG or PNG up to 30 MB.
Do Facebook and Instagram Stories use the same image dimensions?
Yes. Both Facebook Stories and Instagram Stories require a 9:16 aspect ratio at 1440×2560 px recommended resolution. Safe margin rules are also identical: 14% clear at the top and 20% clear at the bottom.
What are the safe zones for Facebook Reels image ads?
Facebook Reels requires 14% clear at the top, 35% clear at the bottom, and 6% on each side. The bottom safe zone is much larger than on Stories because the Reels UI overlays more of the lower screen.
Can I use one image for all Facebook and Instagram placements?
Not without resizing. Feed placements need 1:1 or 4:5 crops, while Stories and Reels need a 9:16 vertical crop. A tool like Coinis Revise Smart Resize can adapt one image to all placements automatically.