What Size Video for Facebook Ad?

Getting your Facebook video ad dimensions right is one of the quickest ways to improve your campaign performance. An ad that perfectly fits the screen looks professional and grabs attention, while a poorly cropped video signals to users that they should keep scrolling. This guide breaks down the exact video sizes, specs, and best practices you need for every Facebook ad placement in 2024.

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Why Does Facebook Video Ad Size Matter?

You might think a video is just a video, but on a platform like Facebook, size and shape are everything. Sticking to the recommended dimensions isn't just about following rules, it directly impacts your ad's effectiveness and your budget.

• Better User Experience: Videos formatted for their specific placement (e.g., a vertical video for Stories) fill the screen, creating a more immersive and native experience. A tiny horizontal video floating in the middle of a vertical screen looks out of place and amateurish.
• Increased Engagement: Mobile-first vertical formats like 4:5 and 9:16 take up significantly more screen real estate on a phone. This pushes competitors out of view and keeps the user focused on your message, which can lead to higher watch times, click-through rates, and conversions.
• Placement-Specific Performance: Facebook's algorithm rewards ads that are well-suited to their placements. Providing correctly sized videos can lead to better delivery and potentially lower costs, as you're giving the platform an asset that fits its user experience standards.
• Professionalism and Trust: A poorly formatted ad - with cut-off text or awkwardly cropped visuals - looks unprofessional. It's a small detail, but it can subconsciously erode trust in your brand before a user even hears your pitch.

Understanding Aspect Ratios vs. Resolution

Before we jump into the numbers, let's quickly clarify two key terms: aspect ratio and resolution.

• Aspect Ratio: This is the proportional relationship between the width and height of a video. It’s written as a ratio, like 1:1 (a perfect square) or 16:9 (a standard widescreen rectangle). It determines the shape of your video.
• Resolution: This refers to the number of pixels in your video, which determines its quality and sharpness. It’s written out as width x height, such as 1920x1080 pixels.

The aspect ratio is your top priority. As long as your video has the correct shape for its placement, Facebook is pretty flexible with resolution, though higher is almost always better.

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Recommended Facebook Video Ad Specs by Placement

Facebook offers a variety of ad placements, and each has its own optimal video format. Here’s a breakdown of the key placements and the specs you need to know.

Facebook & Instagram Feeds

The Feed is the most common ad placement, where users scroll through updates from friends, family, and pages they follow.

• Recommended Aspect Ratio: 4:5 (Vertical)
• Minimum Resolution: 1080 x 1350 pixels
• Why it works: The 4:5 ratio is mobile-first gold. It takes up the maximum amount of vertical space in the Feed without forcing users to turn their phones. It feels native and commands attention. While you can still use a 1:1 square video (1080 x 1080 pixels), the 4:5 vertical option is a better choice for maximizing screen real estate.
• Maximum Video Length: 240 minutes

Facebook & Instagram Stories, Reels, & Messenger Inbox

These placements are all about full-screen, immersive vertical content. They are fast-paced, and your ad needs to look and feel just like the organic content surrounding it.

• Recommended Aspect Ratio: 9:16 (Full-screen Vertical)
• Minimum Resolution: 1080 x 1920 pixels
• Why it works: This format is non-negotiable for Stories and Reels. It fills the entire mobile screen, creating a seamless and engaging experience. Submitting anything else will result in your video being awkwardly cropped or shown with distracting colored bars at the top and bottom.
• Maximum Video Length: Up to 15 seconds for a single Story card (though you can use multi-card ads). Reels ads can be longer.

Facebook In-Stream Video Ads

In-stream ads appear as "commercial breaks" within other videos on Facebook Watch. Users are already in a video-watching mindset, but the format is typically horizontal like a traditional TV screen.

• Recommended Aspect Ratio: 16:9 (Horizontal)
• Minimum Resolution: 1920 x 1080 pixels
• Why it works: Because these ads play within other widescreen videos, a horizontal 16:9 format is the most natural fit. A vertical ad here would feel highly disruptive and out of place.
• Video Length: 5 to 15 seconds.

Facebook Search Results & Marketplace Ads

When users search for something on Facebook or browse Marketplace, they can encounter video ads. The format here is very similar to the main Feed.

• Recommended Aspect Ratio: 1:1 (Square)
• Alternative: 4:5 (Vertical) also works well.
• Minimum Resolution: 1080 x 1080 pixels
• Why it works: The square format is a safe and effective default for these placements. It's compact, visually stable, and works well across both desktop and mobile views of search results and listings.
• Maximum Video Length: 240 minutes

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Facebook Right Column Ads (Desktop Only)

This is a legacy placement that only appears on desktops. These ads are much smaller and less prominent than Feed ads, and as a result, they receive less engagement.

• Required Aspect Ratio: 16:9 (Horizontal)
• Minimum Resolution: 1280 x 720 pixels
• Consideration: Given their smaller size and desktop-only nature, video is less common here. If you use this placement, simple, bold visuals in a short, silent video will perform best.
• Maximum Video Length: 240 minutes

How to Design One Video for Multiple Placements

Creating a different video for every single ad placement is time-consuming and inefficient. The good news is you don’t have to. With smart planning, you can design a single "master" video and then adapt it for the most important placements.

The key is to think mobile-first and design for what is often called the "Safe Zone."

1. Start with vertical 9:16 footage: Shoot and edit your primary video creative in a full-screen 9:16 aspect ratio (1080x1920). This is your master file.
2. Keep critical elements centered: Place all key visuals, logos, calls-to-action, and on-screen text within the central 4:5 portion of the 9:16 frame. Imagine a 4:5 box placed in the middle of your 9:16 canvas - that is your safe zone.
3. Export your versions:

This approach allows you to efficiently create perfectly formatted ads for the two most dominant placements (Feed and Stories/Reels) from a single piece of creative.

Video Ad Technical Specs & Best Practices

Beyond the correct aspect ratio, these technical guidelines will ensure your video uploads smoothly and performs well.

• File Format: MP4 or MOV are the most widely accepted and recommended formats.
• Compression: H.264 video compression and AAC stereo audio compression are standard.
• Sound: Design for sound off. The vast majority of Feed videos are viewed silently. Use bold on-screen text and captions to convey your message without relying on audio. Toggle on automatic captions within Ads Manager or upload your own .SRT file.
• Length: Keep it short. Aim for under 15 seconds for most placements. Hook the viewer in the first 3 seconds with your most compelling message or visual.
• Custom Thumbnail: Don't let Facebook pick a random, blurry frame as your thumbnail. Create and upload an engaging, high-quality image that includes your key value proposition or a striking visual from the video. The thumbnail is what people see before they hit play.
• File Size: Keep your file size below 4GB for the easiest uploading process.

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Preview Your Ads Before Publishing

Don't just guess how your ad will look. Facebook Ads Manager has a built-in preview tool that is incredibly useful. As you're creating your campaign, you can select different placements and see an exact preview of how your video (and text) will render in the Feed, in Stories, on Marketplace, and more. This is your final check to catch any cropping issues or formatting errors before you spend a dime.

Final Thoughts

Matching your video ad specs to the correct placement is foundational for successful Facebook advertising. By prioritizing mobile-first vertical formats like 4:5 for Feeds and 9:16 for Stories and Reels, you give your ads the best possible chance to capture attention and drive results.

Once your campaigns are running, the next challenge is understanding what's actually working. Instead of piecing together reports from Facebook Ads Manager, Google Analytics, and your e-commerce platform, keeping everything in one place saves time and provides clearer insights. To help with this, we built Graphed to connect all your data sources automatically, so you can ask simple questions in plain English - like "what's my Facebook Ads ROI this month?" - and get instant, live dashboards that give you the full picture without the manual crunch work.