Meta Ad Specifications 2026: Complete Guide to Facebook & Instagram Ad Sizes
Running Meta ads without knowing the exact specifications is like driving blind. Your ads get cut off, text becomes unreadable, or images get distorted. You're wasting ad spend on poorly formatted creative.
Getting your ad dimensions, file types, and character limits right isn't optional — it's the foundation of campaign success. A perfectly formatted ad with the right aspect ratio can improve performance by 20-30% compared to poorly sized creatives.
This guide covers every Meta ad format and specification you need for 2026. Whether you're running Facebook and Instagram ads, this is your complete reference.
Facebook Feed Ads Specifications
Facebook feed ads are the most common ad format. They appear directly in the user's news feed, blending with organic content.
Image Dimensions
- Square (1:1): 1080 x 1080 pixels (recommended)
- Landscape (16:9): 1200 x 628 pixels (recommended)
- Portrait (4:5): 1080 x 1350 pixels (recommended)
- Minimum size: 100 x 100 pixels
- Maximum file size: 4 MB
Video Specifications
- Aspect ratios: 1:1, 4:5, 16:9, 9:16
- Length: Up to 240 minutes (but keep under 2 minutes for optimal performance)
- Minimum length: 1 second
- File format: MP4 or MOV
- Video codec: H.264
- Audio codec: AAC
- Frame rate: 23-60 fps
- Maximum file size: 4 GB
- Bitrate: 1000-5000 kbps (minimum 500 kbps)
Text and Copy Limits
- Primary text: 125 characters maximum
- Headline: 27 characters maximum
- Description: 30 characters maximum
- Best practice: Keep primary text under 90 characters for mobile screens
Pro Tip: Image Text Overlay
Facebook limits image text to 20% of the image area. If text covers more than 20%, your ad reach will be limited. Use the Text Overlay Tool on Meta's Ad Manager to check this before launching.
Instagram Feed and Stories Ads
Instagram is visually-driven, so your ad creative must be high quality and attention-grabbing.
Feed Ads Dimensions
- Square (1:1): 1080 x 1080 pixels
- Portrait (4:5): 1080 x 1350 pixels (performs best)
- Landscape (16:9): 1080 x 566 pixels
- Minimum width: 600 pixels
- Maximum file size: 4 MB for images
Stories Ads Specifications
- Aspect ratio: 9:16 (full screen vertical)
- Dimensions: 1080 x 1920 pixels
- Video length: Up to 15 seconds per card
- File format: MP4 or MOV
- Maximum file size: 4 MB for images, 4 GB for video
- Text limit: Up to 125 characters
Instagram Reels Ads
- Aspect ratio: 9:16 vertical (full screen)
- Dimensions: 1080 x 1920 pixels
- Video length: 15 seconds to 90 seconds
- Optimal length: 15-30 seconds for best engagement
- File format: MP4 or MOV
- Video codec: H.264
- Audio codec: AAC
- Bitrate: 1000-5000 kbps
- Frame rate: 23-60 fps
- Maximum file size: 4 GB
Pro tip for Reels: The first 3 seconds are critical. Hook viewers immediately with movement, text, or visual interest. Most mobile users scroll quickly, so capture attention fast.
Instagram Explore Grid
- Recommended dimensions: 1080 x 1080 pixels (square)
- Aspect ratio: 1:1
- File size limit: 4 MB
- Format: JPG, PNG, or GIF
Facebook Stories Ads
Stories ads are full-screen immersive formats that perform exceptionally well on mobile.
- Aspect ratio: 9:16 (vertical full screen)
- Recommended dimensions: 1080 x 1920 pixels
- Video length: Up to 15 seconds per story card
- Minimum video length: 1 second
- File format: MP4 or MOV
- Maximum file size: 4 MB for images, 4 GB for video
- Text limit: 125 characters
Facebook Right Column Ads
These are smaller ads that appear in the right sidebar on desktop. They're ignored on mobile.
- Recommended dimensions: 1200 x 628 pixels
- Alternative dimensions: 1200 x 100 pixels
- Aspect ratio: 16:9 or 12:1
- File size limit: 4 MB
- Format: JPG or PNG only (no video)
- Text limit: 27 characters for headline, 30 for description
Note on Right Column Ads:
Right column ads show only on desktop Facebook. As mobile traffic dominates, these are less effective than feed ads. Most advertisers skip this placement entirely.
Facebook Marketplace Ads
- Recommended image size: 1200 x 628 pixels
- Aspect ratio: 16:9
- Minimum dimensions: 600 x 315 pixels
- Maximum dimensions: 2400 x 1256 pixels
- File size limit: 4 MB
- Format: JPG or PNG
- Product title character limit: 100 characters
Facebook In-Stream Video Ads
These ads appear within video content on Facebook Watch, Instagram, and Messenger.
- Aspect ratios: 16:9 (landscape) or 1:1 (square)
- Dimensions (landscape): 1280 x 720 pixels
- Dimensions (square): 1080 x 1080 pixels
- Video length: 5-30 seconds (ads can be skipped after 5 seconds)
- File format: MP4 or MOV
- Video codec: H.264
- Audio codec: AAC
- Bitrate: 2000-4000 kbps for best quality
- Frame rate: 24-60 fps
- Maximum file size: 4 GB
- Supported sound: Audio is required (ads without sound underperform)
- Text limit (caption): 125 characters
Collection Ads
Collection ads showcase multiple products in a single ad unit.
- Cover image: 1080 x 1080 pixels minimum, 1200 x 628 pixels recommended
- Product images: Minimum 600 x 600 pixels
- Aspect ratio (cover): 1:1 or 16:9
- Maximum products per collection: 10 items
- File size limit: 4 MB per image
- Format: JPG or PNG
Carousel Ads
Carousel ads display multiple images or videos that users can swipe through.
- Number of cards: 2-10 cards per ad
- Image dimensions: 1080 x 1080 pixels (square) or 1200 x 628 pixels (landscape)
- Video dimensions: Same as images
- Video length per card: Up to 240 minutes (but 15-30 seconds performs best)
- Headline per card: 27 characters maximum
- Description per card: 30 characters maximum
- File size limit: 4 MB per card
- Card URL limit: 2048 characters
Video Ad Best Practices and Technical Requirements
Video is the most engaging ad format on Meta. Getting the technical specs right matters for performance and rendering.
Video Codecs and Bitrates
- H.264 codec: Recommended for maximum compatibility
- VP9 codec: Supported but less common
- Bitrate: 1000-5000 kbps (minimum 500 kbps)
- For HD quality: Aim for 3000-4000 kbps
- Audio bitrate: 128 kbps recommended
Video Thumbnail Requirements
- Dimensions: 1280 x 720 pixels (recommended)
- Format: JPG or PNG
- File size: Typically under 1 MB
- Pro tip: Upload a custom thumbnail showing the most compelling moment from your video (not a random frame)
Captions and Subtitles
- Supported format: VTT (WebVTT) or SRT
- Best practice: Add captions to all videos (85% of users watch videos without sound)
- Placement: Bottom of screen, maximum 3 lines of text
- Duration: Captions should match dialog/narration timing
Sound Requirements
- Audio required: Videos without audio underperform significantly
- Audio format: AAC (128 kbps recommended)
- Volume: Maintain consistent audio levels (-4dBFS to -1dBFS recommended)
- Best practice: Include captions AND audio since 85% of users watch without sound
Text and Copy Guidelines for Meta Ads
Character limits are strict. Meta enforces these limits across all placements.
Text Limits by Format
| Element | Limit | ||
|---|---|---|---|
| Primary Text | Yes | Yes | 125 characters max |
| Headline | Yes | Yes | 27 characters max |
| Description | Yes | Yes | 30 characters max |
| Instagram Caption | — | Yes | 2,200 characters |
| Stories Text | Yes | Yes | 125 characters max |
| Button Text | Yes | Yes | 30 characters max |
Important: Instagram Caption Visibility
While Instagram captions allow 2,200 characters, only the first 125 characters show before "...more." Keep your key message in the first 125 characters for maximum visibility.
Copy Best Practices
- Primary text: This is the most important — use it for your main value proposition
- Headline: Keep it punchy and benefit-focused
- Description: Brief call-to-action or supporting info
- Avoid emojis in headline/description: They count as characters and can break formatting
- Test variations: A/B test different copy to find what resonates with your audience
Supported File Formats
Image Formats
- JPG/JPEG: Most common, compresses well
- PNG: Supports transparency, good for product images
- GIF: Supported but avoid for ads (auto-animates in feeds, distracting)
- Maximum file size: 4 MB
Video Formats
- MP4: Most widely supported and recommended
- MOV: Apple format, also well-supported
- WebM: Not recommended (limited support)
- AVI: Not supported
- Maximum file size: 4 GB
Quick Reference Table: All Meta Ad Specs
| Placement | Image Size | Video Length | File Size | Text Limit |
|---|---|---|---|---|
| Facebook Feed (Image) | 1080x1080, 1200x628, 1080x1350 | — | 4 MB | 125 chars primary |
| Facebook Feed (Video) | — | 1s–240min | 4 GB | 125 chars primary |
| Instagram Feed | 1080x1080, 1080x1350, 1080x566 | — | 4 MB | 2,200 chars caption |
| Instagram Stories | 1080x1920 | 1s–15s per card | 4 MB/4 GB | 125 chars |
| Instagram Reels | 1080x1920 | 15s–90s | 4 GB | 125 chars primary |
| Facebook Stories | 1080x1920 | 1s–15s per card | 4 MB/4 GB | 125 chars |
| Right Column | 1200x628 | Not supported | 4 MB | 27 chars headline |
| Marketplace | 1200x628 | Not supported | 4 MB | 100 chars title |
| In-Stream Video | 1280x720, 1080x1080 | 5s–30s (skippable) | 4 GB | 125 chars |
| Carousel | 1080x1080, 1200x628 | 1s–240min per card | 4 MB per card | 27 chars per card |
Common Mistakes to Avoid
Mistake 1: Using Wrong Aspect Ratios
If your image is 1200x628 (landscape), don't try to fit it in a square Stories ad (1080x1920). The image will be distorted. Always resize your creative to the recommended specifications for each placement. Use Photoshop, Canva, or free tools like Pixlr to resize properly.
Mistake 2: Text Overflow on Images
Meta penalizes ads with too much text overlay (more than 20% of image). Use the Text Overlay Tool in Ad Manager to check before launching. Heavy text images get lower delivery and cost more per result.
Mistake 3: Videos Without Captions
85% of users watch mobile videos without sound. If your video doesn't have captions, viewers won't understand your message. Always add captions using VTT or SRT format, or upload video with burned-in captions.
Mistake 4: Ignoring Aspect Ratio Rules
Each placement has a specific aspect ratio. Feed ads don't work well in Stories (too small), and Stories ads in feeds (distorted). Know which placements you're targeting and size accordingly.
Mistake 5: Exceeding Character Limits
When you exceed limits, Meta truncates your text with "..." mid-sentence. This kills your message. Stay under limits: 125 chars for primary text, 27 for headlines. Write benefit-focused copy that fits.
Mistake 6: Low-Quality Images
Pixelated, blurry, or low-resolution images underperform. Always use high-quality images (at least 600px width minimum). For best results, use 1080-1200px width images on high-DPI displays.
Mistake 7: Not Testing Different Formats
Image ads, carousel ads, and video ads perform differently by audience. Don't assume one format works for everyone. Run A/B tests comparing image vs. video, square vs. landscape, short vs. long captions.
Meta Ad Creation Tools and Resources
You don't need expensive software to create ad-compliant creatives.
- Canva: Template-based design tool with Meta ad specs built-in
- Photoshop: Professional editing with precise dimension controls
- Pixlr: Free online editor with batch resizing
- Meta Ads Manager: Built-in design tools and Text Overlay checker
- Adobe Express: Free alternative to Canva with Meta templates
All of these tools can generate ad-sized images and videos meeting Meta's exact specifications.
Need Help With Your Meta Ads?
We create high-performing Facebook and Instagram ads that follow every Meta specification exactly. Our team handles everything: strategy, design, copywriting, testing, and ongoing optimization.
Book Free Strategy Call View Paid Ads ServiceImplementation Checklist
Before launching your Meta ads, verify everything:
- All images match required dimensions (no stretching or cropping)
- Video is correctly formatted (H.264, 1000-5000 kbps)
- Videos include captions (VTT or SRT format)
- Primary text is under 125 characters
- Headlines are under 27 characters
- Descriptions are under 30 characters
- Image text is less than 20% of image area
- File sizes are under limits (4MB images, 4GB video)
- Using approved file formats (JPG, PNG, MP4, MOV)
- All links are working and point to correct pages
Advanced Tips for Optimization
Aspect Ratio Strategy
Different placements perform differently by aspect ratio:
- 1:1 (Square): Best for product-focused ads and social media content
- 4:5 (Portrait): Best engagement on mobile feed
- 16:9 (Landscape): Best for video content and testimonials
- 9:16 (Vertical): Essential for Stories and Reels (no alternatives)
Video Performance by Length
- Under 15 seconds: Highest completion rate, good for stories and reels
- 15-30 seconds: Sweet spot for balance between engagement and messaging
- 30-60 seconds: Good for storytelling and testimonials
- Over 60 seconds: Watch engagement drops significantly; use only if necessary
Thumbnail Selection
For videos, the first frame matters. Users judge whether to play based on the thumbnail. Choose a custom thumbnail showing:
- A person's face (highest engagement)
- Movement or action
- Text highlighting the benefit
- High contrast colors
Threads Ads Specifications (New in 2026)
Threads is Meta's answer to Twitter, and ad placements are now available on the platform. Threads ads support a limited set of formats but are growing rapidly. Understanding Threads ad specifications helps you reach audiences on this emerging platform.
Image Dimensions for Threads Feed Ads
- Square (1:1): 1080 x 1080 pixels (recommended for feed placement)
- Landscape (16:9): 1200 x 675 pixels (for video content)
- Portrait (4:5): 1080 x 1350 pixels (alternative vertical format)
- Minimum size: 100 x 100 pixels
- Maximum file size: 4 MB for images
Threads Video Specifications
- Video length: 1 second to 10 minutes (recommended: 15-60 seconds)
- Aspect ratios: 1:1, 4:5, 16:9, 9:16
- Video format: MP4 or MOV
- Video codec: H.264
- Audio codec: AAC
- Frame rate: 23-60 fps
- Bitrate: 1000-5000 kbps (minimum 1000, maximum 5000)
- Maximum file size: 4 GB
- Captions: Highly recommended (VTT or SRT format)
Threads Ad Copy & Text Requirements
- Primary text: Maximum 125 characters
- Headline: Maximum 27 characters
- Description: Maximum 30 characters
- Image text overlay: Keep text to less than 20% of image area (text-heavy images get lower distribution)
- Link description: Maximum 25 characters
Threads Placement Specifications
- Threads Feed Ads: Appear directly in user feed with same specifications as Instagram feed ads
- Threads Reels-style ads: Full-screen vertical video (9:16) with up to 90 seconds length
- Currently limited placements: Threads is still expanding ad formats; expect more placements by late 2026
WhatsApp Ads Specifications (New in 2026)
WhatsApp ads represent Meta's newest advertising frontier. With over 2 billion users, WhatsApp ads are becoming increasingly important. These ads appear in the WhatsApp Status feature (similar to Instagram/Facebook Stories) and support several formats.
WhatsApp Status Ads Image Dimensions
- Vertical (9:16): 1080 x 1920 pixels (recommended for full-screen experience)
- Aspect ratio: Must be vertical; horizontal videos are not recommended
- Minimum size: 100 x 178 pixels
- Maximum file size: 4 MB for images
WhatsApp Status Ads Video Specifications
- Video length: 1 second to 60 seconds (recommended: 15-30 seconds)
- Aspect ratio: 9:16 (vertical/portrait only)
- Resolution: Minimum 720p, recommended 1080p
- Video format: MP4 or MOV
- Video codec: H.264
- Audio codec: AAC, 44.1 kHz or 48 kHz
- Frame rate: 23-60 fps
- Bitrate: 1000-5000 kbps
- Maximum file size: 4 GB
- Captions: Recommended for improved engagement
WhatsApp Ads Text & Call-to-Action
- Headline: Maximum 35 characters
- Body text: Maximum 90 characters
- Call-to-action button text: Maximum 20 characters (e.g., "Learn More," "Shop Now," "Contact Us")
- Image text overlay: Keep text to less than 20% of image area
WhatsApp Ads Placement Options
- WhatsApp Status Ads: Full-screen, clickable ads appearing in user Status feeds (9:16 vertical video or images)
- Click destination: Can link to website, Facebook Page, WhatsApp Business number, or app
- Direct WhatsApp messaging: New feature allowing users to click and open WhatsApp chat with your business
- Link format: WhatsApp links use specialized format (wa.me/[phone-number])
WhatsApp Ads Performance Considerations
- Ad format adoption: WhatsApp ads are still ramping up; early adopters see premium positioning
- Engagement rates: WhatsApp Status ads show strong click-through rates due to intent-based placement
- Vertical-first design: Horizontal content gets cropped or lower placement; design for 9:16 from the start
- Mobile optimization: All WhatsApp ads are mobile-only; desktop consideration is irrelevant
Platform-Specific Updates for 2026
Meta continuously updates ad formats. Recent changes to watch:
- Reels dominance: Meta is pushing video reels heavily — expect better performance on Reels vs. static images
- Vertical video: 9:16 aspect ratio continues to dominate mobile. Landscape videos get lower placement
- Audio emphasis: Platform is moving toward audio-first content. Silent videos are penalized
- Interactive formats: Polls, questions, and interactive elements in Stories getting higher distribution
- Captions required: Videos without captions are getting lower reach — captions are no longer optional
- Threads platform growth: Threads ads are expanding throughout 2026. Early adoption can provide competitive advantage as formats are still being refined
- WhatsApp Status ads launch: WhatsApp ads represent significant new opportunity. Expect rapid format evolution and strong performance metrics as adoption grows
- Cross-platform optimization: Meta Advantage+ buying automatically optimizes ads across all platforms (Facebook, Instagram, Threads, WhatsApp). Vertical video (9:16) performs best across all platforms
- First 3 seconds critical: Across all platforms, users decide to engage in the first 3 seconds. Hook viewers immediately with movement, text, or emotional impact
Related Resources
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