YouTube Shorts Dimensions in 2026: Correct Size, Ratio, and Export Settings

Quick Answer

The recommended YouTube Shorts size is 1080 x 1920 with a 9:16 aspect ratio. That is still the best choice in 2026 because it fills the mobile screen cleanly and matches how Shorts are usually consumed.

YouTube also classifies square or vertical videos up to 3 minutes as Shorts, but for most creators, 1080 x 1920 vertical remains the safest default.

Exact YouTube Shorts dimensions

Use these specs for most Shorts:

• Resolution: 1080 x 1920
• Aspect ratio: 9:16
• Orientation: vertical
• Recommended file type: MP4
• Recommended video codec: H.264
• Recommended audio codec: AAC-LC

If you want the simplest possible rule, use 1080 x 1920 vertical MP4 and keep your subtitles inside safe margins.

What changed with Shorts length

According to YouTube Help, videos uploaded on or after October 15, 2024 that are square or vertical and up to 3 minutes long can be categorized as Shorts on YouTube.

That means:

• 9:16 vertical still works best for most Shorts
• 1:1 square can still qualify as a Short
• videos can now be up to 3 minutes, not just 60 seconds

For most growth-focused Shorts, though, shorter still tends to be better for retention. The technical limit and the performance sweet spot are not always the same thing.

Export settings that usually work best

YouTube’s recommended upload settings still support a straightforward Shorts export workflow:

• Container: MP4
• Video codec: H.264
• Audio codec: AAC-LC
• Frame rate: keep the same frame rate as the source recording
• Scan type: progressive, not interlaced

If your editor gives you too many settings to choose from, do not overcomplicate it. A clean vertical MP4 export at 1080 x 1920 is enough for most Shorts workflows.

Safe-zone rules for mobile

Even if the file is technically correct, Shorts can still underperform if text is too close to the edges.

Keep these elements away from the outer edges of the frame:

• headline text
• subtitles
• lower-third labels
• CTA text

Why this matters:

• mobile UI can overlap content
• subtitles become harder to read on smaller screens
• edge-heavy layouts feel cramped even when they are not cropped

A good rule is to keep your most important text in the center area of the frame and leave breathing room on all sides.

Best aspect ratio by use case

Here is the practical version:

• Use 9:16 if the content is made specifically for Shorts
• Use 1:1 only if you are intentionally reusing a square asset and it still reads well on mobile
• Avoid republishing 16:9 landscape videos as Shorts without reframing

Yes, square can qualify as a Short. But if your goal is best presentation inside the Shorts feed, vertical still wins.

Common mistakes

• Exporting landscape video and hoping YouTube will fix it
• Placing captions too close to the bottom edge
• Overloading the first frame with too much text
• Using long intros before the hook appears
• Reusing one version without checking how it looks on mobile

Quality checklist before publishing

• Video is exported at 1080 x 1920
• Aspect ratio is 9:16 unless you intentionally chose square
• Text stays inside safe margins
• Hook appears in the first 1 to 3 seconds
• Captions are readable on a phone screen
• Final export looks clean in vertical preview before upload

How Recast helps

If you are producing Shorts regularly, the biggest time saver is not remembering the dimensions. It is avoiding repetitive resizing, reframing, and subtitle cleanup every time you publish.

Recast helps by:

• generating vertical Shorts from longer source content
• keeping output aligned to Shorts-friendly dimensions
• making subtitle styling easier to review
• creating multiple short-form assets from one recording instead of one-off exports

That is especially useful if you are turning podcasts, webinars, or longer interviews into repeatable Shorts content.

FAQ

What is the correct YouTube Shorts size in 2026?

For most creators, use 1080 x 1920 with a 9:16 ratio.

Can square videos be YouTube Shorts?

Yes. YouTube Help says square or vertical videos up to 3 minutes can be categorized as Shorts, but vertical is still the better default for mobile presentation.

Can YouTube Shorts be 3 minutes long?

Yes. Videos uploaded on or after October 15, 2024 that are square or vertical can be Shorts up to 3 minutes long.

What should I optimize first?

First optimize the frame itself: correct dimensions, readable captions, and a strong opening hook.

Sources

• Understand three-minute YouTube Shorts
• Upload YouTube Shorts
• YouTube recommended upload encoding settings

Next Step

If you already have long-form video or audio to repurpose, use AI Shorts Generator to produce vertical variants faster and check the first frame on mobile before publishing.