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.

Bulk Image Processor - Batch Aspect Ratio Tool | RatioGenie

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