YouTube Shorts Size and Aspect Ratio
1080 × 1920 · 9:16
A Short is 1080 × 1920 at 9:16, the same frame as a Reel or a TikTok. What is different is how YouTube decides something is a Short at all: it is a rule about shape and length applied to an ordinary upload, not a separate kind of file. Get either side of that rule wrong and the video is still published — it just goes to the wrong player, which is a failure that never announces itself.
The full envelope
| Specification | Value | What it means |
|---|---|---|
| Frame size | 1080 × 1920 px | The frame that fills the Shorts player. YouTube retains higher resolutions for the main player, but the Shorts feed serves 1080 wide, so this is the useful export size. |
| Aspect ratio | 9:16 to fill, 1:1 or taller to qualify | This is the rule worth knowing. Anything at least as tall as it is wide is eligible for the Shorts shelf, but only 9:16 uses the whole screen — a square upload qualifies and then plays with a third of the display empty. |
| Maximum length | 3 minutes | Raised from 60 seconds on 15 October 2024. A video over three minutes is not rejected — it is published as a normal landscape-player upload instead, even if it is vertical, which is the quiet way a Short stops being a Short. |
| Maximum file size | 256 GB or 12 hours, whichever comes first | YouTube's general upload limit, and by a wide margin the most generous of any platform here. Nothing that qualifies as a Short can get near it, so this is the one platform where file size is genuinely a non-issue. |
| Container | MP4 recommended | YouTube accepts a long list including MOV, MKV, WebM and AVI, and re-encodes all of them. MP4 with H.264 is the one that uploads and processes most predictably. |
| Codec | H.264 video, AAC-LC audio | YouTube's own recommended upload encoding. It transcodes everything on arrival regardless, so the goal is a clean decode rather than a small file — send a higher bitrate than feels necessary. |
| Frame rate | Match your source — 24, 30 or 60 | YouTube supports all common rates and does not prefer one. What hurts is conversion: forcing 24 fps footage to 30 introduces judder the platform's encoder then has to spend bitrate on. |
| Safe area | Keep titles clear of the top 240 px and bottom 480 px | The title, channel name and description sit across the lower part of the frame and the action buttons run up the right-hand edge. The Shorts player also crops slightly differently across devices, so the middle band is the only reliably visible region. |
Worth knowing
Shorts pillarbox — they do not crop
This is the opposite of what most people expect and it is why a wide video posted as a Short looks so wrong. YouTube will not throw away part of your picture without being asked, so a 16:9 upload is fitted to the width of the vertical player and the rest of the screen is left empty. The video ends up occupying roughly a third of the display, next to competitors filling all of it. Nothing is broken and nothing is flagged — it simply loses.
A Short's thumbnail is a different shape from a video's
YouTube's own thumbnail guidance asks for 2160 × 3840 at 9:16 for Shorts, against 3840 × 2160 at 16:9 for a normal upload. There is a sharper trap underneath it: a vertical video given a 16:9 custom thumbnail has that thumbnail replaced by an auto-generated 4:5 crop on the home, explore and subscription pages. The thumbnail you designed still exists, it is just not the one most people see.
Three minutes is a cliff, not a slope
Since October 2024 a Short can run up to three minutes. A second past it and the upload is not rejected or trimmed — it is published as an ordinary video, in the landscape player, with none of the Shorts feed's distribution. A vertical video sitting in the wrong player is the least visible failure on this page, because everything about the upload succeeded.
What YouTube does with each shape you upload
| Your video | Eligible for Shorts | How it plays |
|---|---|---|
| 9:16 vertical — this page | Yes | Fills the Shorts player edge to edge |
| 4:5 portrait | Yes | Qualifies, with bars down both sides |
| 1:1 square | Yes — the boundary | Roughly half the screen used |
| 16:9 landscape | No | Published as a normal video in the main player |
| Over 3 minutes, any shape | No | Published as a normal video in the main player |
Eligibility is decided by shape and length together, and failing either sends the upload to the main player rather than producing an error. That is why a Short that quietly underperforms is worth checking against this table before blaming the content.
The four surfaces side by side
| Surface | Frame | Ratio | Maximum length |
|---|---|---|---|
| Instagram Reel | 1080 × 1920 | 9:16 | 3 minutes in the Reels tab |
| TikTok video | 1080 × 1920 | 9:16 | 10 minutes recorded, 60 minutes uploaded |
| YouTube Shorts — this page | 1080 × 1920 | 9:16 to fill, 1:1 or taller to qualify | 3 minutes |
| YouTube thumbnail | 1280 × 720 | 16:9 | Still image |
Three of the four share one frame, which is why a page that stated only the pixel size would be interchangeable with its neighbours. What separates them is everything else — how long the platform lets a video run, what it will accept as a file, and what its player does to a shape it did not ask for.
Now make a file that fits
Turn a landscape clip into a 1080 × 1920 Short instead of letting the feed pillarbox it into a third of the screen — and reframe back to 1920 × 1080 for the main player.
Also useful here: Trim video, Frame grabber — all of it runs on your own machine, with nothing uploaded.
Other platform specs
Frequently asked questions
What aspect ratio is a YouTube Short?
9:16, at 1080 × 1920 pixels. YouTube treats any video that is at least as tall as it is wide — 1:1 or taller — as eligible for the Shorts shelf, but only a true 9:16 file fills the player. A square video qualifies and then plays with roughly half the screen unused.
How long can a YouTube Short be in 2026?
Three minutes, raised from 60 seconds on 15 October 2024. The limit is enforced by reclassification rather than rejection: a vertical video over three minutes uploads successfully and is then published as an ordinary video in the landscape player, receiving none of the Shorts feed's distribution.
Why is my vertical video not showing as a Short?
Almost always length or shape. Over three minutes, or wider than square, and YouTube publishes it as a normal video instead — successfully, with no warning. Check the exact duration and the exact frame dimensions of the file you uploaded rather than the ones you intended to export.
What size should a YouTube Shorts thumbnail be?
2160 × 3840 at 9:16, which is the vertical counterpart of the 3840 × 2160 YouTube asks for on normal uploads. Be aware that a vertical video given a 16:9 thumbnail has it replaced by an automatically generated 4:5 crop on the home, explore and subscription pages, so a landscape thumbnail on a Short is largely wasted effort.
Do I need to upload Shorts in 4K?
No. The Shorts player serves 1080 wide, so 1080 × 1920 is the useful export size and anything larger is scaled down for that feed. A higher-resolution master is only worth uploading if the same video also needs to look its best in the main player on a large screen.