Aspect Ratio Calculator — Free Tool
Calculate image and video aspect ratios from pixel dimensions. See which social media platforms match your ratio.
Aspect Ratio
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Enter width and height to calculate
Features
- Calculate ratio from width and height
- Decimal ratio display
- Visual proportion preview
- Platform compatibility matching
Common social media aspect ratios
| 1:1 | Instagram Feed, Facebook Post, TikTok Square |
| 4:5 | Instagram Portrait, Facebook Portrait |
| 16:9 | YouTube Video, YouTube Thumbnail, Facebook Group Cover |
| 9:16 | Instagram Story/Reel, TikTok Video, YouTube Short |
| 2:3 | Pinterest Standard Pin, Pinterest Carousel |
| 1.91:1 | Facebook Link Share, X Card, LinkedIn Post |
| 3:1 | X Header, Bluesky Banner, Mastodon Header |
| 4:1 | LinkedIn Background |
How to use this tool
- Enter the width and height of your image or video in pixels.
- See the calculated aspect ratio and decimal value instantly.
- Check the visual preview to see the proportions.
- Review the platform compatibility section to see which social media formats match your ratio.
- Need to resize? Create a free BulkPublish account to manage and publish your media across all platforms.