Convert an image to 1.91:1 ratio
1.91:1 is the standard landscape image ratio for link-preview cards and many ad formats — used by Facebook and Instagram link ads, LinkedIn sponsored content, and several Google Display ad placements. Images close to this ratio display cleanly without being cropped awkwardly by the platform's preview card.
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How to convert your image to 1.91:1 ratio
Upload your image using the tool above.
If the key content (logo, face, headline) sits centrally, crop mode removes a small strip from the top and bottom — rarely a problem.
Switch to pad mode if important elements are close to any edge, since automatic crops hit the edges first.
Download at 1200×628 px as JPEG for the sharpest ad preview.
Why do you need to convert to 1.91:1 ratio?
Facebook, Instagram, and LinkedIn all use 1.91:1 for link-preview cards and many ad placements. If your image is any other ratio, the platform applies its own automatic crop — and that crop rarely lands where you want it, often cutting off a logo, a headline, or a face near the edge. Converting to 1.91:1 yourself means you choose exactly what shows in the preview card.
Common pixel sizes for this ratio (1.91:1)
Where this ratio is used
- Facebook and Instagram link-preview ad images
- LinkedIn sponsored content images
- Google Display Network responsive ad images
- Open Graph (og:image) link preview thumbnails for any shared URL
Crop or pad — which should you use for this ratio?
When the important part of the photo sits centered, a 1.91:1 crop usually only shaves a little off the top and bottom — rarely a problem. Switch to padding if there's text or a logo sitting close to any edge, since that's exactly what an automatic crop is most likely to cut off or garble.
How this ratio compares to a similar one
1.91:1 vs 2:1: practically interchangeable in appearance, but 1.91:1 is the exact pixel ratio (1200×628) that ad platforms expect — using the precise ratio avoids the platform re-cropping your upload slightly when it renders the ad.
Frequently asked questions
Why 1.91:1 specifically, instead of a round number like 2:1?
It comes from the platform-recommended pixel size of 1200×628, which simplifies to roughly 1.91:1. It is close to 2:1 but not identical, and using the exact ratio avoids platforms re-cropping your image slightly when it renders the preview card.
Is this the same ratio for Open Graph link previews on my own website?
Yes — most social platforms reading an og:image tag expect close to 1.91:1 (1200×628 is the most commonly recommended size) so the preview card looks consistent when your page link is shared.
What happens if my ad image isn't exactly 1.91:1?
The platform will typically center-crop it to fit, which can cut off text or logos placed near the edges. Converting to the exact ratio beforehand gives you control over what stays in frame.
Does this ratio work for a YouTube video thumbnail too?
No — YouTube thumbnails use 16:9. 1.91:1 is specifically for link-preview cards and the Facebook/LinkedIn/Google Display ad formats, which are a different, wider shape than YouTube's player.
Why do some of my Facebook ad images look cropped strangely?
If the uploaded image wasn't close to 1.91:1 to begin with, Facebook's system applies its own automatic crop to fit the placement, which can cut off text, logos, or faces near the edges.