YouTube Shorts Size: Every Spec You Need

YouTube Shorts has become one of the fastest ways to grow a channel. But uploading a Short with the wrong dimensions means black bars, cropped text, or a blurry thumbnail that kills your click-through rate before the algorithm even has a chance to push your content.

Here is every YouTube Shorts size spec in one place — no guesswork, no outdated info.

Master YouTube Shorts Dimension Table

Save this table. You will reference it more than once.

Recommended Resolution: 1080 × 1920

The ideal YouTube Shorts resolution is 1080 × 1920 pixels. This is standard 1080p in portrait orientation — full HD quality without wasting bandwidth on pixels most phone screens cannot display.

Can you upload at a lower resolution? Technically, yes. YouTube accepts Shorts as small as 720 × 1280. But lower resolutions look noticeably soft on modern phones with high-density displays, and the algorithm tends to favor content that keeps viewers engaged — blurry video works against that.

Can you upload at 4K (2160 × 3840)? Also yes. YouTube will downscale it. You burn extra upload time and storage for zero visual benefit on the Shorts shelf, where content plays at 1080p maximum. Stick with 1080 × 1920.

Aspect Ratio: 9:16 Is Non-Negotiable

YouTube Shorts uses a 9:16 aspect ratio — the same vertical format as TikTok and Instagram Reels. Any video with an aspect ratio of 9:16 or taller and a duration under 3 minutes automatically qualifies as a Short.

What happens with other aspect ratios:

• 16:9 (landscape): YouTube adds massive black bars above and below. Your content occupies roughly 30% of the screen. Terrible viewer experience.
• 1:1 (square): Black bars top and bottom. Better than landscape, but you still waste nearly half the screen.
• 4:5 (portrait, Instagram feed): Minor black bars. Watchable, but not optimal.

The takeaway: always produce at 9:16. If you are repurposing content from another platform, crop or reframe — do not just upload and hope. For still images and thumbnails, Pixotter's resize tool lets you set exact 1080 × 1920 dimensions and export instantly.

YouTube Shorts Thumbnail Size

YouTube Shorts thumbnails work differently from regular video thumbnails. As of 2026, YouTube lets creators select a frame from the video or upload a custom thumbnail for Shorts. Custom thumbnails display at 1080 × 1920 pixels — the same dimensions as the Short itself.

A few things to keep in mind:

• Thumbnails appear in the Shorts shelf, subscription feed, and channel page — each context crops slightly differently
• Keep important visual elements (faces, text, product) in the center 70% of the frame
• The Shorts shelf overlay places the title at the bottom — avoid putting key information in the bottom 15%
• If you need to create a custom thumbnail image from scratch, start with a 1080 × 1920 canvas

For standard YouTube video thumbnails (1280 × 720), see our YouTube thumbnail size guide. The specs are completely different, so do not mix them up.

Safe Zones: Where to Place Text and Graphics

YouTube overlays UI elements on top of your Short. If you put text or graphics in those areas, they get covered. Here is the safe zone breakdown:

• Top 10–15%: Channel name, subscribe button, and navigation controls sit here. Avoid placing critical text in this zone.
• Bottom 15–20%: Title text, like/comment/share buttons, and the description snippet overlay this area. This is the most common mistake — creators place captions at the bottom where YouTube's own UI hides them.
• Right edge (bottom half): The like, comment, share, and remix buttons stack along the right side. Keep a ~60px margin from the right edge in the lower half.
• Center 60–70%: This is your actual safe zone. All important text, key visuals, and calls-to-action belong here.

When designing still images or title cards for Shorts, use a 1080 × 1920 canvas and keep all essential content within roughly 150px of each edge. For a visual reference of how different social platforms handle safe zones, check our social media image sizes guide.

Video Specs: Duration, Format, and Bitrate

Beyond dimensions, YouTube Shorts has specific video requirements:

Duration: 1 second minimum, 3 minutes maximum. Shorts recorded in the YouTube app were originally capped at 60 seconds, but the limit was extended to 3 minutes in October 2024. Uploads from your camera roll can be up to 3 minutes regardless of how they were recorded.

File format: MP4 with H.264 video codec and AAC audio codec. This is the most universally compatible combination. MOV files from iPhones work too, but MP4 ensures no transcoding surprises.

Bitrate: YouTube recommends 8 Mbps for 1080p at 30fps and 12 Mbps for 1080p at 60fps. Higher bitrates improve quality in scenes with fast motion (sports, gaming, transitions) but increase file size. For talking-head content, 8 Mbps is plenty.

Frame rate: 30fps for most content. 60fps for gaming, sports, or anything with fast motion. YouTube accepts 24fps too, but 30fps is the sweet spot for Shorts — smooth enough without ballooning file size.

File size limit: 256 MB for mobile uploads. Desktop uploads can go larger, but if your 3-minute Short exceeds 256 MB, your bitrate is almost certainly too high.

How Shorts Differ from Regular YouTube Videos

The biggest practical difference beyond dimensions: Shorts lack end screens and cards, so you cannot link to other videos or external sites from within the Short. Your channel page and pinned comment are the only tools for driving viewers to longer content.

For channel branding consistency, make sure your YouTube banner size is also dialed in — the banner displays alongside your Shorts on your channel page.

Repurposing Content from TikTok and Instagram Reels

Good news: TikTok, Instagram Reels, and YouTube Shorts all use the same 9:16 aspect ratio and 1080 × 1920 resolution. Repurposing across platforms is straightforward with a few caveats:

Remove watermarks. YouTube's algorithm deprioritizes content with visible TikTok watermarks. Always download the original file from TikTok (without watermark) or re-export from your editing app. Do not screen-record — quality drops significantly.

Check duration. TikTok allows videos up to 10 minutes, and Reels up to 90 seconds. If your TikTok video exceeds 3 minutes, you will need to trim it for Shorts.

Adjust captions for safe zones. TikTok and Reels place their UI overlays in slightly different positions than YouTube Shorts. Captions that are visible on TikTok might be partially covered on YouTube. Review your text placement before uploading.

Re-export images at exact dimensions. If you are repurposing still images or title cards between platforms, resize them to exactly 1080 × 1920 rather than relying on platform auto-cropping. Pixotter's resize tool handles this in seconds — set the target dimensions, drop your image, download. For TikTok-specific image specs, our TikTok image size guide covers everything.

If your source images are too large for quick sharing, you can also compress them before uploading — especially useful for thumbnail images and title cards that do not need maximum quality at maximum file size.

Frequently Asked Questions

What is the best YouTube Shorts size?

1080 × 1920 pixels at a 9:16 aspect ratio. This gives you full HD quality in the vertical format YouTube Shorts requires. Lower resolutions work but look soft on modern phone screens.

Can I upload a horizontal video as a YouTube Short?

You can, but YouTube will add black bars above and below the video, and your content will only fill about 30% of the screen. Always crop or reframe to 9:16 for Shorts.

What is the YouTube Shorts thumbnail size?

YouTube Shorts thumbnails are 1080 × 1920 pixels — the same dimensions as the Short itself. YouTube lets you pick a frame from the video or upload a custom thumbnail image.

How long can a YouTube Short be?

YouTube Shorts can be between 1 second and 3 minutes. The 3-minute limit was introduced in late 2024, up from the original 60-second cap.

Do YouTube Shorts need to be exactly 9:16?

Shorts must be 9:16 or taller (narrower). A 9:18 video would still qualify. But anything wider than 9:16 — including square (1:1) and landscape (16:9) — results in black bars and a poor viewing experience.

Can I repost TikTok videos as YouTube Shorts?

Yes, as long as the video is under 3 minutes and you remove the TikTok watermark. YouTube's algorithm suppresses watermarked content. Always export the original file from your editing app or download from TikTok without the watermark.

What aspect ratio calculator can I use for Shorts?

Our image aspect ratio calculator lets you input any resolution and see the exact aspect ratio, or work backwards from 9:16 to find pixel dimensions at different quality levels.

What file format should I use for YouTube Shorts?

MP4 with H.264 video and AAC audio. This combination is universally compatible and avoids transcoding issues. MOV files from iPhones also work, but MP4 is the safest choice.