YouTube Aspect Ratio Calculator
This YouTube calculator covers the key sizes creators use every day, from 16:9 long-form video and thumbnails to 9:16 Shorts.
YouTube content publishing spans multiple assets: video frame, thumbnail, Shorts layout, and channel graphics. Keeping each asset in the right ratio helps avoid blur, clipping, and weak preview quality in search and recommendation surfaces.
Need a full cross-platform overview first? Visit the social media aspect ratio hub.
Calculated Ratio
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YouTube Format Reference Table
Use this reference when you are planning exports or validating creative before upload. These ratios cover common organic workflows for YouTube and help you avoid accidental crops.
| Format | Ratio | Pixels | Notes |
|---|---|---|---|
| Standard video | 16:9 | 1920x1080 | Most common delivery |
| Standard video 4K | 16:9 | 3840x2160 | High-resolution output |
| Thumbnail | 16:9 | 1280x720 | Minimum 640x360 |
| YouTube Shorts | 9:16 | 1080x1920 | Vertical format |
| Channel banner | 16:9 canvas | 2560x1440 | Center-safe text zone required |
| Profile photo | 1:1 | 800x800 | Cropped to circle in UI |
Tip: on smaller screens, swipe horizontally to view the full table.
Tips for Better YouTube Publishing
- Design thumbnails at 1280x720 and test readability at small sizes before publishing.
- For Shorts, compose centrally and avoid important text near the bottom UI action stack.
- Use 16:9 masters for long-form uploads to keep playback and embed behavior predictable.
It is often faster to create a platform-first master rather than forcing one asset into every ratio. Use this calculator to create intentional variants for feed, story, reel, and thumbnail surfaces.
If you run a cross-platform content calendar, pair this page with related calculators so editors can move from one ratio to the next without rebuilding math manually.
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Frequently Asked Questions about YouTube Ratios
What size is a YouTube thumbnail?
The standard thumbnail size is 1280x720, which is a 16:9 ratio.
What is the YouTube Shorts aspect ratio?
YouTube Shorts uses 9:16, typically published at 1080x1920.
What aspect ratio should I use for normal YouTube videos?
Use 16:9 for standard long-form uploads, most often at 1920x1080.
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