Facebook Ad Sizes in 2026: Specs for Every Placement
Facebook ad sizes in 2026 center on a few core dimensions: Feed images at 1200 by 628 pixels (1.91:1), square images at 1080 by 1080 (1:1), and full-screen Story and Reels at 1080 by 1920 (9:16). Meta accepts a range of sizes, but designing to these standards keeps your creative sharp across every placement. Below is a complete reference table plus the text limits and file specs you need.
Core Facebook and Meta ad sizes
| Placement | Recommended size (px) | Aspect ratio |
|---|---|---|
| Feed image (landscape) | 1200 x 628 | 1.91:1 |
| Feed image (square) | 1080 x 1080 | 1:1 |
| Feed image (vertical) | 1080 x 1350 | 4:5 |
| Stories | 1080 x 1920 | 9:16 |
| Reels | 1080 x 1920 | 9:16 |
| Right column (desktop) | 1200 x 628 | 1.91:1 |
| Carousel card | 1080 x 1080 | 1:1 |
| In-stream video | 1280 x 720 | 16:9 |
Why 4:5 is the workhorse for Feed
The 1080 by 1350 vertical format (4:5) takes up more vertical space in the mobile Feed than a landscape or square image, which means more of the screen is yours as someone scrolls. Many advertisers default to 4:5 for Feed placements and 9:16 for Stories and Reels, then add a 1:1 square as a flexible fallback. If you only make one Feed asset, a 4:5 vertical is usually the strongest choice on mobile, where the majority of impressions happen.
Text and caption limits
Meta truncates long copy, so the first lines matter most. As a working guide:
- Primary text: around 125 characters before it gets cut with a "See more" link on most placements. Front-load the hook.
- Headline: keep it tight, roughly 27 to 40 characters reads cleanly without truncation across placements.
- Description: short, around 27 to 30 characters where it shows; it does not appear on every placement.
Generating copy that respects these limits by default saves a round of edits. An ad copy generator can draft primary text, headlines, and descriptions already shaped to fit Feed and Stories.
File and format specs
- Format: JPG or PNG for images; MP4 or MOV for video.
- Resolution: use the largest size available; Meta downscales cleanly but never upscales.
- Aspect ratio tolerance: stay within the recommended ratios so the platform does not auto-crop in ways you did not intend.
- Safe zone for Stories and Reels: keep text and logos away from the top and bottom roughly 14 percent of the frame, where the profile icon, caption, and call to action sit.
The resizing problem, and how to skip it
The reason ad sizing eats so much time is that one campaign needs several of these at once: a 4:5 Feed, a 1:1 Square, and a 9:16 Story, minimum. Recomposing the same creative for each ratio by hand, so the product stays centered and nothing important gets cropped, is tedious work. A tool that resizes for every placement in one pass handles that recomposition for you, adjusting the layout per ratio rather than just stretching one image. Adscreator does this in the same run that writes your copy and generates your images, so you get every Facebook size at once with flat pricing and no per-export credits.
A quick checklist before you publish
- Feed asset at 4:5 (1080 x 1350) or 1:1 (1080 x 1080).
- Stories and Reels at 9:16 (1080 x 1920) with safe zones respected.
- Primary text hook in the first 125 characters.
- Headline under 40 characters.
- Largest-resolution files exported in JPG, PNG, or MP4.
Once your dimensions are right, the faster move is to let one tool produce every Facebook size at once. See how the ad resizer turns a single creative into every placement without manual cropping.
Generate your ad set with Adscreator.
Paste a product URL or describe what you sell, and get ad copy, on-brand images, and every placement size in one pass, with variants to A/B test. Then export and launch where you already buy ads.