Facebook Ad Sizes

What is the Most Popular Facebook Ad Size?

The most popular facebook ad size is 1200 x 628 pixels. The image cannot contain more than 20% text. One exception is if the image (or photograph) contains a product or object that has text on it naturally. The 1200 x 628 recommended facebook ad size will get resized once it is uploaded.

How Does Facebook Calculate How Much Text is in an Ad?

Facebook uses a very primitive way to calculate how much text is in an image. Facebook uses a 5x5 grid overlay on the image and sees which boxes contain text out of the 25 boxes. Even if there is a bit of text in a box, Facebook counts that box as containing text.

For example, if 5 of the 25 boxes have text in them, you meet the requirements (5/25 is 20%).