Instagram Image Sizes.

Every 2026 Instagram dimension you need. From square posts to reels and stories, get the aspect ratios right every time. Use the guides below to ensure your content is perfectly captured.

1080 × 1080

Square Post

1080PX by 1080PX

1.00:1

The classic 1:1 Instagram grid post.

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1080 × 1350

Portrait Post

1080PX by 1350PX

0.80:1

Vertical 4:5 post for maximum screen real estate.

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1080 × 566

Landscape Post

1080PX by 566PX

1.91:1

Wider 1.91:1 post format.

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1080 × 1920

Stories / Reels

1080PX by 1920PX

0.56:1

Full-screen 9:16 vertical content.

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Why Instagram Dimensions Matter

In 2026, social platform algorithms increasingly prioritize high-quality, correctly formatted media. Using the wrong dimensions can lead to awkward cropping, blurring, or even lower reach for your content.

Our reference guide for Instagram is updated for 2026 standards, ensuring your images look sharp on everything from ultra-high-res desktop monitors to the latest mobile displays.