AI Images Free Tools

Free tools powered by Bulk Image Generation

Aspect Ratio Calculator for Midjourney, DALL-E, Stable Diffusion, and Flux

Calculate and optimize your AI image generation prompts with the perfect aspect ratios for Midjourney v5, Midjourney v6, DALL-E 3, Stable Diffusion, and Flux 1.1 Pro models

1.91:1

AI Image Generation Aspect Ratio Calculator for Midjourney, DALL-E, Stable Diffusion, and Flux

Calculate and optimize your AI image generation prompts with the perfect aspect ratios for Midjourney v5, Midjourney v6, DALL-E 3, Stable Diffusion, and Flux 1.1 Pro models

Midjourney v5128:67
Professional AI image generation with excellent composition control
--ar 1200:628 --v 5
Details & Tips
1:1 (square)
2048x2048 for square images
Requested: 300:157 (1200x628)
Pro Tips:
  • Use --v 5 flag to ensure version 5 features
  • For ultra-high-quality, use MidJourney's upscale tool
  • Avoid extreme aspect ratios (>2:1) as compositions may break
  • Best results with ratios between 1:2 and 2:1
Midjourney v6128:67
Latest version with enhanced photorealism and better aspect ratio handling
--aspect 1200:628 --v 6
Details & Tips
1:1 (square)
2048x2048 for square images
Requested: 300:157 (1200x628)
Pro Tips:
  • Use --v 6 flag to access latest features
  • Supports wider aspect ratios than v5 (up to 3:1)
  • Better handling of extreme compositions
  • Use --quality 2 for higher detail
DALL·E 37:4
OpenAI's advanced image generator with high artistic quality
Size: 1792x1024
Details & Tips
7:4 (1792x1024)
1792x1024
Requested: 300:157 (1200x628)
Pro Tips:
  • Stick to standard aspect ratios for best results
  • Use external upscaling for higher resolutions
  • Describe composition in prompt for custom ratios
  • Best quality with default 1792x1024 size
Stable Diffusion128:67
Open-source AI model with flexible customization options
--w 1024 --h 536
Details & Tips
1:1 (512x512)
1024x1024 (base model)
Requested: 300:157 (1200x628)
Pro Tips:
  • Use textual inversion for better compositions
  • Combine with ControlNet for precise control
  • Generate smaller and upscale for better detail
  • Use negative prompts for extreme ratios
Flux 1.1 Pro128:67
High-performance AI optimized for commercial image generation
Dimensions: 2048x1072
Details & Tips
Fully customizable
2048x2048+
Requested: 300:157 (1200x628)
Pro Tips:
  • Use batch generation for extreme ratios
  • Enable tiled processing for ultra-high resolutions
  • Leverage presets for specific use cases
  • Test multiple variations for best results
1200×628

Facebook Ad

Optimal size for Facebook feed advertisements
820×312

Facebook Cover

Recommended size for Facebook cover photos
1920×1080

Facebook Event Cover

Ideal size for Facebook event cover images
1200×900

Facebook Post

Standard size for regular Facebook posts
1080×1080

Instagram Post (Square)

Square format for Instagram feed posts
1080×566

Instagram Post (Landscape)

Landscape format for Instagram feed posts
1080×1350

Instagram Post (Portrait)

Portrait format for Instagram feed posts
1080×1920

Instagram Story

Vertical format for Instagram Stories
900×900

Telegram Post (Square)

Square format for Telegram post images
900×1200

Telegram Post (Vertical)

Vertical format for Telegram post images
1600×900

Telegram Channel Header

Ideal dimensions for Telegram channel header images
1080×1920

TikTok Video

Vertical format for TikTok videos
1200×630

Open Graph Image

Standard Open Graph image size for web previews
1280×720

YouTube Thumbnail

Recommended size for YouTube video thumbnails
1000×1500

Pinterest Pin

Recommended size for Pinterest pins
1000×2100

Pinterest Long Pin

Ideal dimensions for long-format Pinterest pins
1920×1080

HD Video

Standard resolution for HD videos
3840×2160

4K Video

Standard resolution for 4K videos
1080×1620

Poster (2:3)

Common size for posters with a 2:3 aspect ratio
1050×600

Business Card

Standard size for business cards
2000×1000

Panorama (2:1)

Wide-format panorama aspect ratio

AI Image Generation Aspect Ratio Calculator for Midjourney, DALL-E, Stable Diffusion, and Flux

Calculate and optimize your AI image generation prompts with the perfect aspect ratios for Midjourney v5, Midjourney v6, DALL-E 3, Stable Diffusion, and Flux 1.1 Pro models

Midjourney v5128:67
Professional AI image generation with excellent composition control
--ar 1200:628 --v 5
Details & Tips
1:1 (square)
2048x2048 for square images
Requested: 300:157 (1200x628)
Pro Tips:
  • Use --v 5 flag to ensure version 5 features
  • For ultra-high-quality, use MidJourney's upscale tool
  • Avoid extreme aspect ratios (>2:1) as compositions may break
  • Best results with ratios between 1:2 and 2:1
Midjourney v6128:67
Latest version with enhanced photorealism and better aspect ratio handling
--aspect 1200:628 --v 6
Details & Tips
1:1 (square)
2048x2048 for square images
Requested: 300:157 (1200x628)
Pro Tips:
  • Use --v 6 flag to access latest features
  • Supports wider aspect ratios than v5 (up to 3:1)
  • Better handling of extreme compositions
  • Use --quality 2 for higher detail
DALL·E 37:4
OpenAI's advanced image generator with high artistic quality
Size: 1792x1024
Details & Tips
7:4 (1792x1024)
1792x1024
Requested: 300:157 (1200x628)
Pro Tips:
  • Stick to standard aspect ratios for best results
  • Use external upscaling for higher resolutions
  • Describe composition in prompt for custom ratios
  • Best quality with default 1792x1024 size
Stable Diffusion128:67
Open-source AI model with flexible customization options
--w 1024 --h 536
Details & Tips
1:1 (512x512)
1024x1024 (base model)
Requested: 300:157 (1200x628)
Pro Tips:
  • Use textual inversion for better compositions
  • Combine with ControlNet for precise control
  • Generate smaller and upscale for better detail
  • Use negative prompts for extreme ratios
Flux 1.1 Pro128:67
High-performance AI optimized for commercial image generation
Dimensions: 2048x1072
Details & Tips
Fully customizable
2048x2048+
Requested: 300:157 (1200x628)
Pro Tips:
  • Use batch generation for extreme ratios
  • Enable tiled processing for ultra-high resolutions
  • Leverage presets for specific use cases
  • Test multiple variations for best results

Frequently Asked Questions About AI Image Aspect Ratios

How does the AI Aspect Ratio Calculator work?

The AI Aspect Ratio Calculator automatically computes the optimal dimensions for different AI image generation models (Midjourney, DALL-E 3, Stable Diffusion, and Flux 1.1 Pro). Enter your desired width and height, and it generates the correct prompt format with appropriate aspect ratios for each model while respecting their specific limitations and requirements.

How do I use aspect ratios in Midjourney?

In Midjourney v5, use the '--ar' parameter followed by width:height (e.g., '--ar 16:9' for widescreen). Midjourney v6 uses '--aspect' instead. The calculator automatically formats these commands for you. Midjourney v5 supports ratios up to 2:1, while v6 extends to 3:1 for more extreme compositions.

What aspect ratios does DALL-E 3 support?

DALL-E 3 supports specific preset aspect ratios: square (1:1), landscape (16:9), and portrait (9:16). The maximum resolution is 1792x1024 pixels. Our calculator automatically adjusts your dimensions to the closest supported DALL-E 3 format while maintaining the best possible quality.

How do I set custom dimensions in Stable Diffusion?

Stable Diffusion uses '--w' for width and '--h' for height parameters (e.g., '--w 1024 --h 768'). The calculator generates these parameters automatically. While Stable Diffusion supports custom dimensions, it works best with sizes up to 1024x1024 pixels for optimal quality.

What's the difference between aspect ratio and resolution?

Aspect ratio is the proportional relationship between width and height (e.g., 16:9, 4:3), while resolution is the actual pixel dimensions (e.g., 1920x1080). Our calculator helps you maintain the desired aspect ratio while optimizing the resolution for each AI model's capabilities.

Which aspect ratios work best for social media?

Different platforms have optimal ratios: Instagram prefers 1:1 (square) or 4:5 (portrait), Twitter works best with 16:9, and Facebook accommodates 1.91:1. Our calculator can help you format these ratios correctly for AI image generation across different models.

About AI Image Aspect Ratio Calculator

Our AI Image Aspect Ratio Calculator is designed to help you generate perfect dimensions for AI image generation models including Midjourney (v5 and v6), DALL-E 3, Stable Diffusion, and Flux 1.1 Pro. Whether you're creating images for social media, marketing materials, or artistic projects, this tool ensures your prompts use the optimal aspect ratios and resolutions for each AI model.

The calculator supports all major AI image generation platforms and automatically formats the correct prompt syntax for each service. It handles Midjourney's --ar and --aspect commands, DALL-E 3's size requirements, Stable Diffusion's width and height parameters, and Flux's dimension specifications. This makes it easier to generate consistent, high-quality images across different AI platforms without memorizing their specific formatting requirements.

Want AI Images?

Generate 100 AI images in just 20 seconds with our Bulk Image Generation service

If you already have an account, we will log you in