How to Change and Optimize Aspect Ratio Midjourney

Have you started using Midjourney but struggling with configuring the right aspect ratio? You are not alone.

But no worries! It is actually quite straightforward.

Follow this quick guide on how to do it.

What is Aspect Ratio?

First things first: aspect ratio is the width-to-height proportion of your video or image.

In Midjourney, you can choose among different aspect ratios depending on your needs, such as 16:9 for wide-screen, 4:3 for standard definition, or 1:1 for square content.

This way you can easily tailor your AI image generation to your needs, requiring less manual adjustments before using the visuals.

How to Change the Aspect Ratio in Midjourney

You are already generating AI images with Midjourney and want to change the aspect ratio.

If you are struggling to get started, check out our quick guide to get started with Midjourney.

Can you Change the Aspect Ratio in Midjourney?

While the default setting is a square 1:1 ratio, you can change the aspect ratio in Midjourney by using the --aspect or --ar parameter. Followed by the desired aspect ratio.

Midjourney accommodates a wide range of ratios, so you're free to tweak until your creation feels just right.

How to Change the Aspect Ratio in Midjourney?

Let’s get down to business. If you’re already generating AI images with Midjourney but want to change the aspect ratio, here's how to do it:

1. Start with a Basic Prompt: Type /imagine followed by your creative description.

/imagine: a cat dressed as a superhero flying over a city

2. Add the Aspect Ratio Parameter: At the end of the prompt, simply append `--ar` followed by your desired aspect ratio. Like this: --ar 16:9.

/imagine: a cat dressed as a superhero flying over a city --ar 16:9

In essence, you’re just adding the aspect ratio parameter at the end of your regular prompt.

It's as simple as that.

This will determine the width-to-height ratio of your output image, making it fit perfectly wherever you plan to use it.

For instance, you can use --ar 2:3 for portrait photos or --ar 4:3 for a more traditional look.

So, that's it!

With the --ar parameter, you can control the shape of your canvas in Midjourney, making the platform adaptable for whatever your project needs.

Midjourney Aspect Parameter --ar

As you have seen, to change the aspect ratio you need to work with Midjourney parameters.

By simply adding the --ar parameter in the end of your Midjourney prompt, you can determine the shape of your canvas, that is, the width and height of your images

This versatility allows you to tailor the image output to meet your specific needs, whether it is for merchandise, social media graphics, or any other application.

Why Aspect Ratio Matters

Different social media platforms have preferred aspect ratios, so pick the one that aligns with where you'll share the content.

For example, Instagram Stories use a 9:16 aspect ratio.

The content type is another factor for why aspect ratio matters.

If you're making a cinematic video, 21:9 gives you a broad, dramatic canvas. For infographics or text-heavy slides, a square 1:1 ratio might be more practical.

Also audience devices should be considered for aspect ratios.

For instance, the 16:9 ratio works great for desktop and TV, but a 9:16 ratio could be better for mobile viewing.