What is the recommended image size for a Facebook ad?

The recommended image size for a Facebook ad depends on the ad format and placement. Here are the recommended image sizes for the most common Facebook ad formats:

1. Single Image or Video Ad: The recommended image size is 1200 x 628 pixels with an aspect ratio of 1.91:1. The image should not contain more than 20% text.
2. Carousel Ad: The recommended image size is 1080 x 1080 pixels with an aspect ratio of 1:1. The image should not contain more than 20% text.
3. Slideshow Ad: The recommended image size is 1280 x 720 pixels with an aspect ratio of 16:9, 1:1, or 4:5. The image should not contain more than 20% text.
4. Collection Ad: The recommended image size is 1200 x 628 pixels with an aspect ratio of 1.91:1. The image should not contain more than 20% text.
5. Instant Experience Ad: The recommended image size is 1200 x 1200 pixels with an aspect ratio of 1:1. The image should not contain more than 20% text.

For Facebook Stories ads, the recommended image size is 1080 x 1920 pixels with an aspect ratio of 9:16.

Note: Facebook may resize or crop your images to fit the ad placement and format. Make sure to use high-quality images that are visually appealing and relevant to your ad. You can use Facebook's Image and Text Check tool to check if your image meets the 20% text rule.