The Reels safe zone
For Instagram Reels, Meta's Ads Guide asks advertisers to consider leaving at least 14% of the top, 35% of the bottom and 6% on each side free of text, logos and other important elements, so they are not cropped, covered by the profile icon or the call to action, or too close to the edges of phones taller than 9:16. The Facebook Reels page asks for roughly the same 14%, 35% and 6%.
Length and text
Instagram Reels video ads run from 0 seconds to 15 minutes; the Facebook Reels page lists no maximum length. Meta recommends 44 characters of primary text on Instagram Reels, and 40 characters of primary text with a 55-character headline on Facebook Reels.
Stories, video and the numbers after
The same 9:16 file works in Stories: see Instagram story size, and video ad specs for every placement's video length. Once a Reels ad runs, the CTR calculator and the CPA calculator show whether it earns its spend.
Questions
1440 × 2560 pixels at 9:16 is Meta's recommended size for Reels ads on Facebook and Instagram.
Meta's Ads Guide lists 0 seconds to 15 minutes for Instagram Reels video ads, with files up to 4 GB.
250 pixels for ads under 30 seconds, and 500 pixels for ads of 30 seconds or longer.
The percentages match: Meta's guidance for both is to keep about 14% at the top, 35% at the bottom and 6% on each side clear of text and logos.
Sources
Every figure on this page comes from Meta's own pages, read on 3 November 2026. Meta changes these specs from time to time, so check the source before a large production run.
- Meta Ads Guide: Instagram Reels, image · checked 2026-11-03
- Meta Ads Guide: Instagram Reels, video · checked 2026-11-03
- Meta Ads Guide: Facebook Reels, image · checked 2026-11-03
- Meta Ads Guide: Facebook Reels, video · checked 2026-11-03