Meta Ad Specs and Sizes 2026: Facebook and Instagram Ad Sizes, Safe Zones and Text Limits (Cheat Sheet)

For Meta ads in 2026, use 4:5 vertical at 1080 × 1350 pixels for Facebook and Instagram Feed, with square 1:1 at 1080 × 1080 as the next best option. Stories and Reels need 9:16 at 1080 × 1920. Keep the top 14% and the bottom 20% of Stories free of key content, and the bottom 35% of Reels. Write primary text whose first lines work on their own, and a headline that makes sense in about 25 to 30 characters.

Last updated: 20 October 2026. Meta updates its specs regularly, so check the previews in Ads Manager and the Meta Ads Guide before you publish.

I've managed $35M+ in Meta ad spend across 50+ brands, and wrong sizes are one of the easiest problems to fix in any account. Sizes affect your results as much as your looks. In my tests, square videos in Stories or Reels typically perform 30 to 40% worse than properly formatted vertical content, because they use only about half of the available screen.

This cheat sheet lists the sizes for every main placement, the safe zones that keep your text and product visible, and the text lengths that show before Meta cuts them off. It also explains how I build one asset that works everywhere, so you don't have to design ten versions of every ad.

Facebook and Instagram Ad Sizes by Placement

When you use Advantage+ placements, which I recommend for most accounts, your ad can appear in many places at once. The main ones are Facebook Feed, Instagram Feed, Stories and Reels, and those are the placements worth designing for.

There are other placements, like the Audience Network or Facebook search results, but they will rarely be your main placement and they reuse the assets above. I don't create separate creative for them.

Image and Video File Specs

These are the technical limits Meta lists for image and video ads. In practice, you'll stay far below the maximum file sizes, and the real priority is a sharp file in the right ratio.

For video pacing, I've found through testing that the ideal clip length is between 2 and 3 seconds. Any longer and you lose attention, any shorter and people can't take in what they're seeing. Straight cuts also work better than fancy transitions, which make an ad feel like an ad.

Safe Zones for Stories and Reels

The safe zone is the area of your creative that stays visible no matter what Meta places on top of it or how it crops the asset. In Stories and Reels, your profile name, the Sponsored label, the caption and the call to action button all sit on top of your ad. Anything important in those areas gets covered.

I think of a 9:16 vertical creative as having three sections. The middle section, roughly a square in the center, is my real safe zone, where the product, the key text and the main action live. The top and bottom sections are flexible, good for extra context or visual interest, but nothing important should sit there.

When I shoot for Stories and Reels, I leave about 20% of space at the top and the bottom of the frame, which gives room for text and buttons without covering the main content. For Reels I keep text overlays in the middle and upper part of the safe zone, slightly left of center, since the like, comment and share icons sit on the right. I also keep the bottom quarter fairly clean for captions and the button.

For a deeper look at vertical ads, my guide on how to create Instagram Story ads walks through the full Stories setup.

Text Limits: Primary Text, Headline and Description

Text works differently in every placement, and the safest approach is to write for the version that shows the least. These are the lengths I write for.

The primary text appears above your creative in the Facebook feed and below it in the Instagram feed. I once worked with a client who had an amazing product video, but their primary text started with Welcome to our brand. Nobody clicked See more, because nobody cares about being welcomed to a brand they don't know yet.

Headlines that use specific numbers tend to beat generic ones, because someone scrolling at speed understands them immediately. Three times your revenue is more compelling than Grow your business, and for B2B a headline like Generate 50 leads in 30 days works because it's specific, measurable and time bound.

How I Build One Asset for Every Placement

You don't need ten designs for every ad. My golden rule is to always start in vertical 9:16, because it's much easier to adapt a vertical asset into other formats than to stretch a square or horizontal one into vertical.

1. Create the master in 9:16 at 1080 × 1920, with the product, the key text and the main action inside the central square.
2. Leave the top and bottom flexible, using them for context and atmosphere rather than anything people must see.
3. Export a 4:5 crop at 1080 × 1350 for the feeds, and a 1:1 crop at 1080 × 1080 if you also run carousels or Marketplace.
4. Upload the versions together in one ad and use asset customization in Ads Manager, so each placement gets the right ratio.
5. Review Meta's Advantage+ creative enhancements, such as image expansion, brightness and contrast changes and text variations, and switch off any that don't fit your brand.
6. Check every placement preview before you publish, especially Reels, where the most screen gets covered.

Once your ads are live, the sizes are only the start. The opening seconds decide whether anyone watches, so track your hook rate and refresh creative before it wears out, as I describe in my guide to hook rate and creative fatigue. For ideas on what to put inside the frame, read what makes Facebook ad creative work.

Common Sizing Mistakes

• Square or horizontal videos in Stories and Reels. They leave large empty areas and, in my tests, perform 30 to 40% worse than proper vertical videos.
• Text in the top or bottom of vertical ads. The profile name, caption and button cover it, so keep it in the middle.
• Mixed ratios in a carousel. Use the same ratio for every card, and 1:1 is the safest choice.
• Polished creative that looks like a billboard. Ads that look like magazine pages stand out in the wrong way in social feeds, while native looking creative blends in and still gets noticed.
• Primary text that starts slowly. If the first lines don't hook people, they never see the rest.
• Skipping the previews. Meta crops and covers creative differently in each placement, and the preview is the only way to see what people will actually see.

Frequently Asked Questions About Meta Ad Specs

Get the Basics Right, Then Focus on the Creative

The right sizes and safe zones make sure people can actually see your ad, which is the foundation for everything else. Build in 9:16, keep the important parts in the middle, write for the first lines and the first words of the headline, and check every preview before you publish.

If you're new to Meta ads and want to learn how tracking, creative and testing fit together, my free Meta Ads Foundations Training is the best place to start.