YouTube Shorts aspect ratio, size and export settings

An aspect ratio describes the shape of the frame, not its size. A 9:16 frame is 9 units wide for every 16 units of height. Turn a regular widescreen video (16:9) on its side and you get the same shape. Because the ratio is about proportions, a 540x960 file and a 1080x1920 file share the same shape, but the larger one carries four times as many pixels and looks noticeably sharper on modern phones.

When people talk about the YouTube Shorts aspect ratio, they mean this vertical shape. The Shorts player is built around it: the video fills the screen from top to bottom, the title and channel name sit over the lower part of the picture and the action buttons run down the right edge. Any other shape leaves empty space somewhere on the screen.

• 9:16 is vertical and fills the full Shorts player
• 1:1 is square and leaves bars above and below the picture
• 4:5 is slightly taller than square and still leaves some empty space
• 16:9 is horizontal and is normally treated as a regular video rather than a Short

The resolution most creators and editors use for Shorts is 1080 pixels wide by 1920 pixels tall. It matches the full HD standard turned vertical, it is what most phones record when you shoot upright in 1080p and it is what YouTube displays well in the Shorts feed. You can upload larger vertical files, such as 2160x3840, and YouTube processes them, but most viewers watch on a phone where 1080x1920 already looks crisp.

Going smaller is where problems start. A 720x1280 file is still 9:16, yet text and captions look soft next to clips shot in full HD. If your source footage is 1080p horizontal, a vertical crop from it gives you a frame that is roughly 608 pixels wide before scaling. That is why it pays to record in 4K when you plan to crop vertical clips out of a horizontal shot, and why a good reframing step matters so much (more on that further down).

YouTube classifies a Short by two things: the shape of the video and its length. Vertical and square videos up to the length limit are treated as Shorts. A horizontal 16:9 video is treated as a regular video, even if it is only 40 seconds long. It appears on the watch page and in long-form surfaces, with its own thumbnail, and it does not get the full screen vertical treatment in the Shorts feed.

That has a few consequences you should plan for:

• A horizontal clip does not compete in the Shorts feed the way a vertical clip does, so it misses the surface where most short-form discovery happens.
• If a horizontal video does show up in a vertical context, it plays as a thin strip in the middle of the screen with large empty areas above and below.
• Captions and on-screen text designed for a wide frame end up tiny on a phone.

The fix is not to upload the horizontal file and hope. The fix is to reframe it to 9:16 before export, so the person or object that matters fills the vertical frame.

Square (1:1) videos up to the length limit count as Shorts. In the feed they show with empty bars above and below the picture. Some creators use those bars on purpose, placing a headline above and captions below, which can work well for podcasts and talking-head clips. The tradeoff is a smaller picture, because the frame only uses part of the screen height.

A 4:5 video sits between the two. It is popular on other platforms because it takes more screen space than square in a scrolling feed. On Shorts it still leaves some empty space, so if YouTube is the main destination, 9:16 remains the better default. If you post the same clip to several platforms, export one 9:16 version for Shorts, TikTok and Reels and add a 1:1 or 4:5 version only where a feed layout needs it.

Since October 2024, YouTube accepts Shorts up to three minutes long, as long as the video is vertical or square. Before that change the limit was 60 seconds, which is why you still find older guides that insist on one minute. A vertical video longer than three minutes is treated as a regular video.

Being allowed to post three minutes does not mean every Short should be that long. A Short is judged by how many people keep watching instead of swiping away, and a long clip has more chances to lose them. Many talking-head and podcast moments work best between 20 and 60 seconds: long enough to deliver one complete idea, short enough that the payoff arrives before attention drifts. Tutorials and stories with a clear structure can earn more time. Let the content decide, then check the retention graph described in our guide to youtube shorts analytics.

• Up to 3 minutes for vertical or square videos counts as a Short
• Over 3 minutes is treated as a regular video
• Horizontal videos are regular videos regardless of length
• Shorter is not automatically better, a complete idea is

Clips that use music from YouTube's own audio library can have a shorter allowed length for that track, and some copyrighted music claims can restrict where a longer Short is shown. If you clip your own talk, podcast or tutorial with your own audio, this rarely matters. If you add a licensed track, check the length the audio library allows before you export a long version.

The Shorts player puts interface elements on top of your video. The title, channel name and audio label sit along the bottom, the like, dislike, comment, share and remix buttons run down the right side and a few controls appear at the top. Anything important you place in those areas can be hidden or hard to read.

A simple working rule is to keep faces, captions and key text in the central part of the frame, away from the bottom strip and the right edge. Captions often look best a little below the middle of the screen, above the area covered by the title. The exact space taken by the interface changes with device size and app version, so treat the edges as risky rather than chasing pixel-perfect margins. Our full guide to the youtube shorts safe zone goes deeper, with layouts for single speakers, two-person interviews and screen recordings.

• Keep the speaker's face in the upper or middle part of the frame
• Place captions above the bottom strip where the title appears
• Leave the right edge clear of text, the buttons sit there
• Check one frame on a real phone before you publish a batch

Once the frame is right, export settings decide whether the picture stays clean after YouTube processes it. You do not need exotic settings. You need sensible ones applied every time.

• Container and codec: MP4 with H.264 video is the safe, widely supported choice. AAC audio at 48 kHz works well.
• Resolution: 1080x1920. Do not upscale a small source to this size and expect sharpness, but do export at this size when the source allows it.
• Frame rate: keep the frame rate of your source, for example 24, 25, 30 or 60 frames per second. Converting 30 to 60 adds nothing, and converting 60 to 30 can make motion look uneven.
• Bitrate: YouTube publishes recommended upload bitrates in its help center. For 1080p they sit around 8 Mbps for standard frame rates and around 12 Mbps for 48 to 60 frames per second. Exporting a little above those numbers gives the encoder room, exporting far below them invites blocky gradients.
• Color: standard dynamic range (Rec. 709) is the predictable option. HDR is supported, but it adds steps that rarely pay off for talking-head clips.
• Audio: normalize dialogue so it sits at a steady level, many viewers watch with low volume or rely on captions entirely.

If you export captions as a separate SRT file in addition to burned-in captions, you also give YouTube a text track it can show to viewers who prefer closed captions.

Most Shorts use captions burned into the picture, because the styling (size, color, highlighted words) is part of the look and because many people watch with the sound off. Burned-in captions must respect the safe zone and stay large enough to read on a small screen. A caption file such as SRT is a useful addition: it is searchable text and it can be switched on by viewers who need it. An auto caption generator saves the slow part, which is typing and timing every word.

Most long videos are recorded in 16:9: podcasts, interviews, webinars, tutorials and vlogs. Turning a segment of that footage into a vertical Short is mostly a reframing job. Here is a reliable way to do it by hand.

• Pick the segment first. Find a moment that makes sense on its own, with a clear start and a payoff, between roughly 15 and 90 seconds.
• Set a 1080x1920 timeline. Do not edit in a 16:9 timeline and crop at the end, you lose control over the framing.
• Scale the source so it fills the height. A 1920x1080 source scaled to 1920 pixels tall becomes about 3413 pixels wide, so you now choose which vertical slice to show.
• Position the slice on the speaker. Center the face horizontally and keep the eyes roughly in the upper third of the frame.
• Follow movement with keyframes. If the speaker leans or walks, add position keyframes so the face stays centered. Keep moves smooth, sudden jumps look like mistakes.
• Handle two speakers deliberately. Either cut between them as they talk, or use a split layout with one person in the top half and the other in the bottom half.
• Add captions last, inside the safe zone, once the framing is final.
• Check sharpness. If the source is 1080p, the vertical slice is upscaled, so the result is softer than native vertical footage. Recording at 4K avoids that.

A handful of mistakes show up again and again when horizontal footage is turned vertical.

• Letterboxing instead of reframing: placing the full 16:9 picture in the middle of a 9:16 canvas with blurred bars around it. It is quick, but the speaker becomes tiny.
• Static center crop: cropping the middle of the frame and hoping the speaker stays there. On a two-person podcast the crop often shows the gap between the hosts.
• Cutting off on-screen content: in tutorials, the code or the interface often sits on the side of the screen. Decide whether the face or the screen matters more in each part and switch framing accordingly.
• Captions on top of the face: placing captions in the middle without checking where the speaker's mouth is.

Manual reframing works, but it is slow when you clip a weekly podcast or a library of older videos. ShortsCreator, a youtube shorts maker built for this job, reads the transcript of your long video, ranks the moments that stand on their own, then cuts each one to 9:16 with face tracking that keeps the speaker centered and a split layout when two people talk. It adds animated captions inside the safe zone and exports 1080x1920 MP4 up to 60 fps, plus an SRT file. You can also export 1:1 and 4:5 versions of the same clip.

If you want the full walkthrough of that process, read how we turn long videos into shorts. Once clips are ready, our guides on the best times to post youtube shorts and how to schedule youtube shorts cover the publishing side, and hashtags for youtube shorts covers the description.

Run through this list for every Short. It takes a minute and catches most problems that show up after publishing.

• The frame is 9:16 at 1080x1920 (or square, if that is a deliberate choice)
• The video is three minutes or shorter
• The speaker's face sits in the upper or middle part of the frame
• Captions are inside the safe zone and readable on a phone
• Export is MP4 with H.264 video and AAC audio, at the source frame rate
• The first second already shows something worth watching
• The ending lands on a complete thought, not in the middle of a sentence

To understand how the feed decides who sees your clip after upload, see our explanation of the youtube shorts algorithm.