What is the 4:5 video size, and where should you use it?

What size is a 4:5 video?

A 4:5 video is a portrait frame: 4 units wide for every 5 tall, a ratio of 0.8. At 1080 pixels wide, the width of a 1080 x 1920 vertical video, it is 1080 x 1350. The same shape comes in other sizes, and the official pages that name one are about ads: LinkedIn recommends 720 x 900 for its 4:5 video ads, and Meta recommends 1440 x 1800 for Facebook Feed video ads.

4:5 sits between square (1:1) and full-screen vertical (9:16). Shown at full width on a 1080 x 1920 phone screen, a 4:5 picture is 1350 pixels tall, about 70% of the screen height, against about 56% for a square one. It is not 3:4 either: a 3:4 frame 1080 pixels wide is 1080 x 1440, a little taller.

Where 4:5 fits: Instagram, LinkedIn, Threads and Facebook

Every platform below takes a 4:5 video. The pages that name 4:5 as the recommended ratio are about ads: LinkedIn's video ads specifications and Meta's guidance for Facebook Feed. For Instagram Feed video ads, Meta recommends 9:16, and Meta's developer docs recommend 9:16 for reels and Threads posts published through its APIs. The pages about posting from the apps give a range, or no figure, rather than a preferred ratio. "Not stated" means we found no figure on the platform's own pages on October 16, 2026.

Meta adds one detail for Facebook Feed ads: on the computer version of Facebook Feed, a video is shown at 1:1, which may put black bars on either side of it.

Instagram: reels, carousels and the profile grid

On Instagram, a video posted on its own goes up as a reel. Meta announced on July 21, 2022 that new video posts shorter than 15 minutes would be shared as reels, and the Help Center's link for sharing a video leads to its article on recording a reel. Instagram accepts reels from 1.91:1 to 9:16, with a frame rate of at least 30 fps and a resolution of at least 720 pixels, so a 1080 x 1350 file goes up as it is.

Carousels work differently. The orientation chosen for a carousel, square, portrait or landscape, applies to every photo and video in the post, and Instagram says videos in carousels are not considered reels: they do not show up in the Reels tab. Photos have their own range. The Help Center keeps a photo at its original resolution between 1.91:1 and 3:4, that is 1080 pixels wide and 566 to 1440 tall, while Meta's developer docs require images published through the Instagram API to fall within 4:5 to 1.91:1. That 4:5 limit is for images: reels published through the API take any ratio from 0.01:1 to 10:1.

As of October 16, 2026, no Instagram Help Center page we read states the shape of the profile grid's thumbnails or how a 4:5 video is cropped there, and the crop figures that circulate on other sites disagree with each other. Look at your profile after posting, and keep faces and text away from the edges of the frame. Our guide to Instagram Reels length and size covers the rest of Instagram's specs.

LinkedIn: 4:5 or 9:16?

LinkedIn's help pages accept both. An uploaded video can have any ratio from 1:2.4 to 2.4:1, between 256 x 144 and 4096 x 2304 pixels, up to 15 minutes and 5 GB, at 10 to 60 fps. The video ads page lists 16:9, 1:1, 4:5 and 9:16, and marks 4:5 as the "Recommended ratio", at 720 x 900 and up to 1080 x 1350; 9:16 ads are recommended at 720 x 1280 and accepted up to 1080 x 1920. Those ad specs also apply when you sponsor an existing organic video post.

LinkedIn also has a full-screen vertical video feed, with a video tab and a video carousel in the mobile app, which may not be available to all members. LinkedIn says a video cannot be added to that feed directly: any video shared on LinkedIn may appear there, based on relevance and performance, and the page names no aspect ratio. LinkedIn's upload page asks to keep the top, bottom and sides of a video free of key elements, text and logos, so the interface does not cover them.

For a regular post, LinkedIn states no preference between the two. In our view, 4:5 suits a clip meant for the feed, among other posts, and matches LinkedIn's ad recommendation if you sponsor the post later; 9:16 suits a file that also goes to Shorts, Reels or TikTok. That is editorial judgment, not a LinkedIn rule. One more line to check before sponsoring a clip: the video ads page asks for a frame rate of less than 30 fps, while organic uploads take 10 to 60 fps.

4:5, 9:16 or 1:1: which to use when

9:16 fills a phone screen held upright. Meta recommends it for Reels and Stories placements on Instagram and Facebook, and for Instagram Feed video ads. YouTube categorizes square or vertical uploads of up to three minutes as Shorts. For a clip meant to fill the screen in Shorts, Reels or TikTok, export 9:16.

4:5 is the portrait shape LinkedIn recommends for video ads and Meta recommends for Facebook Feed ads and Instagram Feed image ads. It keeps more of a horizontal recording than 9:16, as the next section shows. A 4:5 frame is still vertical, so on YouTube a 4:5 upload of three minutes or less is categorized as a Short, even though it does not fill a 9:16 screen.

1:1 is accepted in the same feeds and takes up less of a phone screen. Among the pages we read, Meta recommends square video only for Facebook Marketplace ads. 3:4 is the tallest shape Instagram keeps for photos, and none of the pages we read recommends it for video.

How to get a 4:5 clip from a 16:9 recording

Crop a 4:5 window at full height and move it with the person on screen. From a 1920 x 1080 recording, that window is 864 x 1080 pixels: 45% of the width, against 31.6% for a 9:16 window of 608 x 1080. The 4:5 window is 42% wider, so more of the room stays in frame, and it only needs scaling up 1.25x to reach 1080 x 1350.

Crop the 4:5 from the source, not out of a finished 9:16 clip. A 1080 x 1350 cut out of a 1080 x 1920 export keeps the full width of that export but loses its top and bottom, so it shows only the 608-pixel-wide slice of the source that the 9:16 crop had kept, instead of 864 pixels. Zooming in narrows the window further: at x1.4, the highest shot zoom in a shortshort 4:5 export, the crop is 617 x 771 pixels.

Source resolution sets the sharpness. A 1280 x 720 source gives a 576 x 720 window, scaled up 1.88x, while a 3840 x 2160 recording is scaled down. The table lists the common cases.

• At a camera change, jump to the new framing instead of panning across the cut.
• Show slides and charts whole when a crop would lose their text.
• Keep a 9:16 version of each clip for Shorts, Reels and TikTok, and a 4:5 one for the feeds that suit it.
• Check the file against the target page before uploading: LinkedIn's 4:5 ads stop at 1080 x 1350, and Meta recommends 1440 x 1800 for Facebook Feed video ads.

With shortshort

shortshort cuts a long recording you own, a file in MP4, MOV or WebM up to 2 GB or the link of your own public or unlisted YouTube video, downloaded on our servers at up to 720p with its audio, into shorts. Each short exports as an MP4 (H.264, 30 fps) in 9:16 at 1080 x 1920, the default for Shorts, TikTok and Reels, or in 4:5 at 1080 x 1350 for the Instagram feed, a choice made at export for the whole series on every plan. A 4:5 export is framed again for its own shape, with the face tracked anew rather than the 9:16 crop made wider. In 9:16, the zoom on a tracked face stays at x1.0 or x1.04 for each shot, with gentle push-ins up to about x1.11 on emphasized words, and x1.6 is reached only on a passage that is not tracked. In 4:5, the shot zoom brings a small face to about 20% of the frame height, at most x1.4, and push-ins top out near x1.5, under the x1.6 ceiling of every format. In 4:5 as in 9:16, the crop follows the most visible face on screen: it does not tell who is speaking, and there are no manual framing controls. There is no 1:1 or 16:9 export, no 4K and no 60 fps. Scheduling a short always takes its 9:16 version; a short that exists only in 4:5, such as a 4:5 copy edited after its 9:16 export, goes out in 4:5, and YouTube and TikTok show it with bars. There is no 3:4 export either. A 4:5 export stays out of the gallery unless you publish it yourself. shortshort does not post to Instagram, LinkedIn, Threads or Facebook: you download the MP4 and upload it yourself. A new account gets 30 free credits once, with no card, and 1 credit covers 1 minute of source video; Free exports carry a shortshort.io watermark, and paid plans export without it.

Sources

The official pages this guide relies on, with the day each one was read.

• Reel size & aspect ratios on Instagram - Instagram Help Center, checked 16 October 2026.
• Image resolution of photos you share on Instagram - Instagram Help Center, checked 16 October 2026.
• Share a post with multiple photos or videos on Instagram - Instagram Help Center, checked 16 October 2026.
• Share photos and videos on Instagram - Instagram Help Center, checked 16 October 2026.
• Introducing New Ways to Collaborate and Create With Reels - About Meta (Jul 21, 2022), checked 16 October 2026.
• IG User Media reference, Image and Reel Specifications - Meta for Developers, checked 16 October 2026.
• Aspect ratios supported by placements in Meta Ads Manager - Meta Business Help Center, checked 16 October 2026.
• Awareness Video Ad Specs on Instagram Feed - Meta Ads Guide, checked 16 October 2026.
• Awareness Video Ad Specs on Facebook Feed - Meta Ads Guide, checked 16 October 2026.
• Making it easier to create videos on Facebook - Meta for Creators (Jun 17, 2025), checked 16 October 2026.
• Threads API overview, Limitations and Specifications - Meta for Developers, checked 16 October 2026.
• Video sharing troubleshooting - LinkedIn Help, checked 16 October 2026.
• Video ads advertising specifications - LinkedIn Help, checked 16 October 2026.
• Full-screen vertical video on LinkedIn - LinkedIn Help, checked 16 October 2026.
• Understand three-minute YouTube Shorts - YouTube Help, checked 16 October 2026.

Related

• How long can an Instagram Reel be, and what size should it be?Instagram Reels can run 20 minutes, but past 3 minutes they aren't recommended to non-followers. Ratio, 4:5, fps, resolution, cover, size: checked Oct 2026.
• How do you reframe a horizontal 16:9 video to vertical 9:16?Turn a horizontal 16:9 talk, podcast or webinar into vertical 9:16 clips without losing the speaker, slides or group shots, and meet YouTube Shorts rules.
• What are the short-form video specs in 2026 for each platform?Length, ratio, resolution, file size and formats for Shorts, TikTok, Reels, Facebook, LinkedIn, X, Snapchat Spotlight and Spotify Clips, read October 2026.
• Make Instagram Reels and 4:5 feed videos from a longer videoCut a long video into Instagram Reels in 9:16 or feed videos in 4:5 at 1080 x 1350, framed on the face and captioned word by word, as MP4s you post yourself.
• Convert a horizontal recording into 9:16 clips that follow the faceTake a 16:9 recording and get separate 9:16 clips at 1080 x 1920, the crop following the face on screen, zooms held between x1.0 and x1.6, framing automatic.
• Cut a webinar recording into clipsTurn a recorded webinar of up to 2 GB into 9:16 clips: slides kept full-frame, the presenter tracked, whole answers from the Q&A, captions on every word.
• A 9:16 or 4:5 crop that follows the face on screenEach short is cropped to 9:16 or 4:5 around the face on screen, tracked again for each format, with zooms between x1.0 and x1.6 and slides kept full-frame.

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