The Ultimate Masterclass on Instagram Post Sizes

Whether you are launching a personal brand, showcasing your photography, or managing a business profile, nothing kills the vibe of a great photo faster than awkward cropping, blurry scaling, or cut-off text. Because Instagram relies heavily on mobile screens, mastering the exact dimensions of your uploads is the secret to a polished, professional feed.

This guide covers everything you need to know about Instagram post sizes, aspect ratios, and grid optimization.

1. Instagram Feed Posts: The Big Three

When posting to your main feed, you have three primary orientation options. However, they perform very differently when users are scrolling through their feeds.