In AI generative art, Midjourney has emerged as a powerful tool for artists and creators, enabling them to produce stunning visuals and images. One of the critical elements that can significantly impact the composition and overall appeal of artwork is the aspect ratio. 

Together we will explore what aspect ratios Midjourney supports and how to change the aspect ratio as well as understand its significance in creating captivating art pieces.

Understanding Aspect Ratio

Before diving into changing aspect ratios on Midjourney, let’s first grasp what aspect ratio means. 

The aspect ratio is the relationship between the width and height of an image or video, represented as two numbers separated by a colon, such as 5:3. 

The first number denotes the width. In contrast, the second number represents the height. Different aspect ratios result in images of varying shapes and dimensions.

Common aspect ratios like 3:2, 16:9, and 9:16 are widely used for specific purposes. For instance, the 3:2 ratio is often associated with traditional print photography. 

In contrast, the 16:9 ratio is prevalent in widescreen displays and videos. The 9:16 ratio is famous for vertical or portrait-oriented content like social media stories.

Changing Aspect Ratio on Midjourney

Midjourney makes it relatively simple to modify the aspect ratio of your images, allowing you to achieve the desired visual effects. 

To change the aspect ratio, you can use the ‘–aspect’ or ‘–ar’ parameter during the generation process.

For instance, if you want to create a more comprehensive image, you can use a higher width-to-height ratio. 

Conversely, for a more rectangular image, set one unit of the aspect ratio more significant than the other. 

Midjourney accepts any whole number aspect ratio, giving you the flexibility to experiment with various compositions and designs.

Step-by-Step Guide to Changing Aspect Ratio

Let’s walk through a step-by-step guide to changing the aspect ratio on Midjourney:

  1. Choose Your Aspect Ratio: Determine the aspect ratio that best suits your artistic vision and the purpose of your artwork. Whether it’s a square, landscape, or portrait orientation, the correct aspect ratio can significantly impact how your audience perceives your creation.
  2. Use the Appropriate Parameter: In Midjourney, you can modify the aspect ratio using the ‘–aspect’ or ‘–ar’ parameter. These parameters allow you to set the desired width-to-height ratio for your image.
  3. Whole Numbers Only: It’s essential to remember that Midjourney only accepts real numbers for aspect ratios. Decimals, such as 1.85:1, are not supported.
  4. Experiment and Fine-Tune: Don’t hesitate to experiment with different aspect ratios and styles. Midjourney provides an excellent opportunity to explore various compositions and discover the one that best aligns with your artistic vision.

Impact of Aspect Ratio on Artwork

The aspect ratio plays a crucial role in how viewers perceive your artwork. 

It influences the overall composition and can direct the viewer’s attention to specific elements within the image.

For example, a square aspect ratio often creates a balanced and harmonious composition. 

In contrast, a wider aspect ratio can add a sense of grandeur and expansiveness to a landscape. 

A portrait-oriented ratio can draw attention to a single subject and evoke a sense of intimacy.

Aspect Ratio for Different Types of Artwork

Different types of artwork benefit from specific aspect ratios. For instance:

Book Covers

A portrait aspect ratio is often preferred for book covers, as it provides ample space for the title and author’s name at the top or bottom. 

At the same time, the central artwork remains the focal point.


Landscape aspect ratios are commonly used for wallpapers, as they allow the artwork to span across the screen and create a visually captivating backdrop.

Social Media Posts

Different aspect ratios may be more suitable depending on the platform and the type of content you are sharing. 

For example, Instagram posts often look best with square or portrait ratios. At the same time, YouTube thumbnails benefit from a widescreen 16:9 aspect ratio.

The Importance of Composition and Quality

Changing the aspect ratio on Midjourney allows you to experiment with different visual effects. It enhances the composition and quality of your artwork. 

A well-chosen aspect ratio can bring harmony and balance to the image, ensuring it resonates with the audience.

Keep an Eye on Updates

As with any technology, Midjourney may introduce updates and improvements over time. 

To stay informed about the latest features and advancements in aspect ratio options, keep an eye on Midjourney’s official page for announcements and release notes.

Changing the aspect ratio on Midjourney offers artists and creators a powerful tool to shape their artwork and create captivating visuals. 

So, get creative, leverage Midjourney’s capabilities, and produce stunning art pieces that leave a lasting impact on viewers. 

Remember, the true essence of art lies in experimentation and the courage to venture beyond the boundaries of traditional norms. 

Embrace the world of AI generative art and explore the possibilities that Midjourney has to offer. The journey to artistic excellence has never been more exciting!