What resolution should YouTube Shorts be?

The recommended resolution for YouTube Shorts is 1080 x 1920 pixels, which is Full HD in vertical orientation. YouTube also accepts 720 x 1280 pixels as a minimum HD resolution. Always shoot and export at 1080 x 1920 for the sharpest quality on mobile screens, since most viewers watch Shorts on smartphones.

What is the maximum file size for YouTube Shorts?

YouTube allows uploads up to 256 GB or 12 hours in length, whichever is smaller. However, for Shorts specifically, keeping your file size under 100 MB ensures faster uploads and smoother processing. Most well-compressed 60-second vertical videos at 1080p will fall between 10 MB and 60 MB depending on your encoding settings.

Can YouTube Shorts be horizontal?

Technically yes, but horizontal videos will not qualify for the Shorts shelf or appear in the Shorts feed. YouTube requires a vertical or square aspect ratio for Shorts placement. Horizontal content displayed in the Shorts feed would appear with large black bars above and below, significantly reducing the viewing experience on mobile devices.

Does video size affect YouTube Shorts performance?

Yes, using the correct 1080 x 1920 resolution and 9:16 aspect ratio directly affects performance. Properly sized vertical videos fill the entire mobile screen, creating an immersive experience that keeps viewers engaged. Videos with incorrect dimensions display black bars or get cropped awkwardly, which increases the likelihood that viewers swipe past your content.

What Is the Correct YouTube Shorts Size?

Q: How long can YouTube Shorts be?

YouTube Shorts can be up to 3 minutes long as of October 2024. Previously the limit was 60 seconds. However, data shows that Shorts between 15 and 30 seconds consistently achieve the highest retention rates, often exceeding 80 percent. Shorter videos tend to perform better because viewers decide within the first few seconds whether to keep watching.

YouTube Shorts size refers to the dimensions, resolution, and file specifications required for videos to appear correctly in the Shorts feed. The correct size is 1080 x 1920 pixels with a 9:16 vertical aspect ratio. Videos that do not meet these specifications may display incorrectly, get cropped, or fail to qualify for the Shorts shelf entirely.

Getting the size right matters more than most creators realize. According to inBeat Agency, YouTube Shorts average a 5.91% engagement rate, outperforming both TikTok and Instagram Reels. But that engagement depends on your video filling the screen properly and looking sharp on mobile devices where the vast majority of Shorts are consumed.

What Are the Exact YouTube Shorts Dimensions?

The standard YouTube Shorts dimensions are 1080 pixels wide by 1920 pixels tall. This is Full HD resolution in vertical orientation, matching the natural shape of a smartphone held upright.

Here are the key specifications:

Resolution: 1080 x 1920 pixels (recommended) or 720 x 1280 pixels (minimum)
Aspect ratio: 9:16 (vertical)
Maximum upload file size: 256 GB (though keeping under 100 MB is recommended for Shorts)
Supported formats: MP4, MOV, AVI, WMV, FLV, 3GPP, WebM
Recommended codec: H.264 for the best compression-to-quality ratio
Frame rate: 30 fps or 60 fps

YouTube also accepts square (1:1) videos for Shorts, but 9:16 vertical is strongly preferred because it fills the entire mobile screen. Square videos will display with black bars at the top and bottom in the Shorts feed.

How Does Aspect Ratio Affect Shorts Performance?

The 9:16 aspect ratio is critical because it determines whether your video fills the viewer's screen. When someone scrolls through the Shorts feed on their phone, each video occupies the full display. A properly formatted 9:16 video creates an immersive, edge-to-edge viewing experience.

According to Marketing LTB, vertical videos have a 40% higher completion rate compared to horizontal videos when viewed on mobile devices. This makes sense because vertical content matches how people naturally hold their phones. There is no need to rotate the device or squint at a small letterboxed frame.

If you upload a horizontal (16:9) video, YouTube will display it with large black bars above and below. This wastes screen space, looks unprofessional, and gives viewers a reason to swipe to the next Short. Always shoot and export in 9:16 for the Shorts feed.

What Are the File Size and Duration Limits?

YouTube's general upload limit is 256 GB, but for Shorts you want much smaller files. A well-compressed 60-second video at 1080 x 1920 typically ranges from 10 MB to 60 MB depending on the content complexity and encoding settings.

For duration, YouTube extended the Shorts limit from 60 seconds to 3 minutes in October 2024. However, longer is not always better. Data from OpusClip shows that Shorts between 15 and 30 seconds consistently achieve the highest retention rates. Videos in this sweet spot give you enough time to deliver a complete idea without losing viewer attention.

When exporting your video, use H.264 codec with MP4 container format. This combination provides the best balance of file size and visual quality. Avoid uploading uncompressed or minimally compressed files, as they take longer to process and do not improve the viewer's experience.

How Should You Set Up Your Recording for Shorts?

If you are recording specifically for YouTube Shorts, configure your camera or screen recording software to capture in 1080 x 1920 from the start. This avoids quality loss from cropping or resizing in post-production.

On smartphones: Most modern phones record in vertical orientation by default when held upright. Make sure your camera app is set to at least 1080p resolution. Many phones offer 4K recording, which gives you extra flexibility to crop or reframe in editing, but you will still export at 1080 x 1920 for the final Short.

On desktop or with professional cameras: Set your recording resolution to 1080 x 1920 or record in higher resolution (like 4K at 9:16) and downscale during editing. If you are repurposing horizontal footage, you will need to crop it to 9:16, which means losing the sides of the frame. Plan your framing accordingly.

Screen recordings: Set your capture area to 1080 x 1920 pixels before recording. This ensures no cropping or resizing is needed later.

How Does Sizing Differ Across Short-Form Platforms?

YouTube Shorts, TikTok, and Instagram Reels all use the same 9:16 aspect ratio and 1080 x 1920 resolution. This means a single properly sized vertical video can be distributed across all three platforms without reformatting.

The main differences between platforms are in duration limits and file size recommendations, not dimensions. The visual format is standardized across short-form video. This is useful for creators and brands distributing content across multiple platforms simultaneously. Tools like Conbersa help manage multi-platform distribution of short-form video content, ensuring your properly sized Shorts reach audiences on every relevant platform.

When repurposing a single video across platforms, always export at 1080 x 1920 with H.264 encoding. This serves as the universal format that works everywhere in the short-form video ecosystem.