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Instagram Aspect Ratio Calculator
Reference the recommended dimensions for every Instagram format, and calculate the aspect ratio of any custom size.
Frequently asked questions
What is the best aspect ratio for Instagram?
Portrait 4:5 (1080 × 1350) maximizes feed space, while stories and reels use 9:16 (1080 × 1920).
What size should a square post be?
A 1:1 square post should be 1080 × 1080 pixels.
Is the calculator free?
Yes, free and instant, running in your browser.