What's the Maximum Number of Cards in a Facebook or Instagram Carousel Ad?

A Facebook or Instagram carousel ad can include a minimum of 2 and a maximum of 10 cards. Each card carries its own image or video, headline, and link, per Meta's official carousel ad specifications.

What Counts as a Card

A card is one scrollable unit inside the carousel: its own creative asset, its own 40-character headline, and its own destination link, distinct from the other cards in the same ad. Viewers swipe horizontally through the cards in the order the advertiser sets, though Meta's delivery system can also reorder cards toward whichever ones are getting better engagement, depending on the optimization settings chosen.

Images and Video Follow the Same Aspect Ratio Rule

Every card in a single carousel must share the same aspect ratio. A 1:1 square is the recommended default, with 1.91:1 as the other accepted option. If an advertiser uploads cards with mismatched ratios, Meta uses the first card's ratio as the standard and crops the remaining cards to match, which can cut off parts of images that weren't designed with that crop in mind. Image files top out at 30 MB each; video files can run up to 4 GB and as long as 240 minutes, though Meta recommends keeping each card closer to 15 seconds for a format built around quick, scrollable consumption rather than long-form viewing.

Text Limits Apply Per Card, Not Per Ad

Primary text above the carousel is shared across the whole ad and capped at 125 characters, but headline (40 characters) and link description (25 characters) are set individually on each card, meaning a 10-card carousel effectively runs 10 separate small headlines working together rather than one headline repeated across cards.

Why Most Advertisers Don't Use All 10 Cards

Few campaigns actually need the full 10-card ceiling. E-commerce brands showcasing a product catalog, or education and real estate advertisers walking through a multi-step offering, are the more common use cases for cards in the upper range. Most other advertisers get the format's main benefit, showing more than one product or message in a single ad unit, with somewhere between 3 and 5 cards, since cramming in more cards without a clear reason for each one tends to dilute attention rather than add it.

Bottom Line

Plan for at least 3 cards to make the carousel format worth using over a single image, keep every card's aspect ratio consistent before upload to avoid Meta's automatic cropping, and reserve the 10-card maximum for genuinely sequential or catalog-style creative rather than defaulting to it.

Practical Guidance

• Lead with your strongest card — Meta's delivery system can reorder cards toward whichever get the best engagement, but the first card a new ad serves is still the one carrying the most weight before enough data accumulates to reorder anything.
• Match card count to objective — a 10-card product catalog carousel suits an e-commerce sale, while a 3-4 card carousel works better for telling a single sequential story like a case study or a multi-step service offer.

Where Carousel Ads Can Run

Meta serves carousel ads across Facebook, Instagram, Messenger, and Audience Network from a single ad set, using the same 2-to-10 card creative. Placement doesn't change the card-count rule, though individual placements may crop or resize cards to fit their own layout.

Source: Meta Business Help Center, carousel ad specifications (facebook.com/business/ads-guide).