What Is Aspect Ratio?

Aspect ratio is the shape of your picture: its width compared with its height. It isn't the size in pixels. A 4:5 picture is 4 parts wide for every 5 parts tall, however big it is.

The Shapes You Can Pick

• 1:1 (square): profile pictures, Instagram posts and square prints.
• 4:5 (portrait): Instagram portrait posts and 8x10 & larger prints.
• 5:4 (landscape): horizontal photos and 10x8 & larger prints.
• 3:4 (portrait): classic portrait photos and 6x8 or 12x16 & larger prints.
• 2:3 (portrait): prints 4x6, 8x12 or 12x18 & larger prints.
• 3:2 (landscape): horizontal photos and 6x4 or 12x8 & larger prints.
• 9:16 (story): phone wallpapers, Stories, Reels and TikTok.
• 16:9 (wide): screens, YouTube thumbnails, banners and desktop wallpaper.

Note: Portrait is vertical, and landscape is horizontal.

Which One Should I Choose?

Pick the shape of the place the picture is going. A picture for a phone wallpaper looks best at 9:16, and one for a website banner at 16:9. For a print, pick the shape of the frame, so nothing important gets trimmed off.

If you leave it on Default, you get the shape the style was designed for, or 4:5 portrait when it has none.

Motivational Pics

Posters come in three shapes of their own: Vertical (4:5), Horizontal (5:4), Square (1:1).

Can I Change It Later?

Not for a picture that's already made: the AI composes the whole picture for the shape you picked. Make it again in the new shape instead.

Related: What is resolution? and What is format?