Facebook Ad Sizes You Should Be Using in 2026 for Maximum Engagement

Running successful Facebook ads in 2026 requires more than great visuals—it demands that your creative matches the right specifications for each ad format, ensuring maximum reach, engagement, and ROI. With a wide variety of ad placements across Facebook, Instagram, Messenger, and the broader Meta Audience Network, understanding current ad sizes is critical.

Here’s an updated guide to Facebook ad sizes for 2026.

1. Single Image Ads

Overview:

Classic and versatile, single image ads are perfect for brand awareness, engagement, or traffic campaigns.

Specs:

• Image size: 1,200 × 628 px
• Aspect ratio: 1.91:1 to 4:5
• Text overlay: Keep below 20% for optimal delivery

Copy:

• Text: 125 characters
• Headline: 25 characters
• Link description: 30 characters

Notes:

• “Promote Your Page” objective: 1,200 × 444 px, ratio 8:3
• “Increase App Engagement”: ratio 16:9

2. Single Video Ads

Overview:

Video ads capture attention and can be used for most objectives except Product Catalog promotions.

Specs:

• Formats: MP4 or MOV
• Aspect ratio: 100×400 to 400×100 (vertical/portrait adjustments automatically masked to 4:5 if needed)
• Resolution: Minimum 720p, use highest available
• File size: up to 4 GB
• Length: 1 second – 240 minutes
• Thumbnail image: <20% text overlay

Copy: Same as single image ads

3. Slideshow Ads

Overview:

Slideshow ads create looping video ads from 2–10 images, offering a lightweight alternative to full video ads.

Specs:

• Image size: 1,280 × 720 px
• Aspect ratio: 9:16 to 16:9
• File size: up to 4 GB
• Format: MP4 or MOV
• Maintain consistent image ratios to avoid cropping

Copy: Same as single image ads

4. Collection Ads

Overview:

Collection ads combine multiple product images under a cover video or image, allowing users to browse in a visually immersive, full-screen experience.

Specs:

• Vertical image/video ratio: 1:1
• Headline: 25 characters
• Text: 90 characters
• The first video/image serves as the cover

Clicking a collection ad opens an Instant Experience (full-screen interactive display).

5. Instant Experience Ads

Overview:

Previously called Canvas ads, these are full-screen, interactive ad experiences on Facebook.

Specs:

• Text: 90 characters
• Headline: 25 characters
• Up to 20 images per ad
• Image max: 1,080 × 1,920 px
• Video formats: MP4 or MOV
• Aspect ratio: Portrait recommended (landscape auto-adjusts)
• Minimum resolution: 720p

Features: Include videos, linked photos, buttons, captions, and tilt-to-pan elements.

6. Carousel Ads

Overview:

Carousel ads allow multiple images or videos (up to 10) in a single ad, each with its own landing page link.

Specs – Images:

• Size: 1,080 × 1,080 px
• Aspect ratio: 1:1 square
• Max file size: 30 MB
• Format: JPG or PNG
• Minimal text recommended

Specs – Videos:

• Format: MP4 or MOV
• Aspect ratio: 1:1 square
• Resolution: Minimum 720p
• Max file size: 4 GB
• Max length: 240 minutes

Copy:

• Text: 125 characters
• Headline: 25 characters
• Description: 20 characters

Key Takeaways for 2026

• Stay updated: Facebook (Meta) frequently updates ad formats and placements. Check periodically to ensure specs are current.
• Prioritize mobile-first: Most users browse Facebook via mobile devices; vertical formats often perform best.
• Minimal text: Keep text overlays below 20% to maintain optimal ad delivery.
• Test multiple formats: Carousel, collection, and video ads offer opportunities to experiment for maximum engagement.

Keeping your Facebook ad creatives aligned with these updated specifications ensures your campaigns are optimized for reach, engagement, and ROI throughout 2026.