Updated for 2026
Facebook Ad Specs & Size Guide
Complete specifications for every Facebook ad format — Feed videos, Stories, Reels, Carousel, and In-Stream. Get your dimensions, duration, and file types right.
Last updated: 2026-02
Additional Specifications
| Codec | H.264 |
| Frame Rate | 30fps |
| Audio Codec | AAC stereo |
| Audio Bitrate | 128 kbps+ |
Text Character Limits
| Field | Max | Recommended |
|---|---|---|
| Headline | 255 | 40 |
| Description | 255 | 30 |
| Primary Text | 2200 | 125 |
Compatibility Checker
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From Specs to Finished Video Ads
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Ad Specs
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Platform Comparison
| Platform | Recommended Size | Duration Range | Max File Size | Formats |
|---|---|---|---|---|
| 1080×1080 | 1–600s | 4 GB | 6 | |
| 1080×1350 | 3–180s | 4 GB | 4 | |
| ▶️YouTube | 1920×1080 | 1–600s | 256 GB | 6 |
| 🎵TikTok | 1080×1920 | 5–60s | 500 MB | 4 |
Facebook Ad Best Practices (2026)
Reels First Strategy
Facebook Reels receive significantly higher organic reach than Feed posts. Prioritize Reels for maximum visibility and engagement.
15-30s Sweet Spot
The optimal video length for Facebook Reels is 15-30 seconds. While up to 90s is allowed, shorter videos consistently outperform longer ones.
Short + Long Combo
Use 15s Reels to capture attention, then retarget with 60s+ Feed videos to build trust and drive conversions.
Authenticity Over Polish
UGC-style content with real testimonials and raw aesthetics achieves 30%+ higher CTR than professionally produced ads on Facebook.
Facebook Ad Specs FAQ
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