Best format for FB video ads in 2025?

Are square videos still king or have vertical 9:16 ads taken over? I’m about to relaunch a campaign for e-com products and want to know what converts best these days.
Square (1:1) still works fine for feed, but if you’re relaunching, go 9:16 first, then repurpose to 1:1 as backup.
 
Square videos still have their place on some platforms, but vertical formats dominate mobile-first audiences. Testing both could reveal what resonates best with your specific market.
 
I am still running square ads and it is still effective. Based on your sharing, I can test it tonight. Thank you.
 
Are square videos still king or have vertical 9:16 ads taken over? I’m about to relaunch a campaign for e-com products and want to know what converts best these days.
If you are restarting your e-commerce campaign, prioritize investing in content in the 9:16 ratio – this is the format that is converting best today, especially with short-form video ads and UGC (User-Generated Content)-based ads.
 
Of course 9:16. That's the trend because it is the aspect ratio for almost all the social media reels now
 
Are square videos still king or have vertical 9:16 ads taken over? I’m about to relaunch a campaign for e-com products and want to know what converts best these days.
In 2025, vertical 9:16 videos are performing the best especially for Reels and Stories. Square (1:1) still works fine, but vertical ads are getting more engagement and conversions.
 
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