Instagram Square Post Size 1080×1080
Verify your 1080x1080 Instagram square feed post. Verify your 150KB weight limit and dimensions before you go live.
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JPG, PNG, WebP (Max 150KB Limit)
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The Complete Advertiser’s Guide to the 1080×1080 Instagram Square Post
What is the Instagram 1080×1080 Square Post?
The 1080 x 1080 Square Post is the format that built Instagram. While Portrait (4:5) sizes are popular, the classic square remains the only format that looks perfect on both the Feed and your Profile Grid.
Using the correct resolution is critical on Instagram because the platform aggressively compresses images. If you upload something smaller (like 600×600) or larger (like 2048×2048), Instagram will resize it, often causing pixelation.
Why Use the Classic Square?
- Profile Grid Consistency: Your profile page always displays images as squares. Uploading in 1:1 ensures your thumbnail isn’t awkwardly cropped.
- Carousel Friendly: Square is the best format for multi-image carousel posts (swipables).
Technical Specifications
- Dimensions: 1080 x 1080 pixels.
- Aspect Ratio: 1:1.
- Color Profile: sRGB (Instagram converts other profiles, which can wash out your colors).