What is aspect ratio?

Aspect ratio is the proportional relationship between width and height of an image or video, expressed as two numbers separated by a colon (e.g., 16:9).

How do I calculate aspect ratio?

To calculate aspect ratio, divide the width by the height and simplify the fraction. For example, 1920÷1080 = 16:9. Use our free calculator for instant results.

What is the most common aspect ratio?

16:9 is the most common aspect ratio, used for HD video, YouTube, and most modern displays. Other popular ratios include 4:3 (traditional TV), 1:1 (Instagram posts), and 9:16 (Instagram Stories, TikTok).

What aspect ratio is best for Instagram?

Instagram supports multiple aspect ratios: 1:1 (square posts), 4:5 (portrait posts), 16:9 (landscape posts), and 9:16 (Stories and Reels). Our calculator includes presets for all Instagram formats.

Ratio Comparison Tool - RatioGenie

Ratio Comparison Tool

Compare multiple aspect ratios side-by-side to see how your content looks across different platforms

Upload Image for Comparison

Upload an image to see how it looks in each aspect ratio

Upload an image to analyze

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Drag & drop or click • JPEG, PNG, WebP, GIF • Max: 10 MB

JPEG, PNG, WebP, GIF • Max: 10 MB

• Upload any image to see its current aspect ratio

• Compare with different ratios using the calculator below

• Get crop suggestions for your target ratio

Instagram Square

1:1

Social Media

1:1

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Instagram Portrait

4:5

Social Media

4:5

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