comparison

Instagram Post vs Story Size

Use Instagram post size for feed and carousel graphics. Use Instagram Story size for full-screen vertical creative that must avoid top and bottom app UI.

Last checked: 2026-05-03

See quick answer Compare sizes

Source confidence: Calculated Last checked: 2026-05-03 Source: Instagram Help: Image resolution of photos you share Found a spec change? Send correction.

How we calculate this

Methodology and source handling

We compare dimensions, aspect ratio, area difference, and crop risk so the page answers which size fits the job.

Methodology Editorial policy

Quick answer

Copy-ready answer

Use Instagram post size for feed and carousel graphics. Use Instagram Story size for full-screen vertical creative that must avoid top and bottom app UI.

Instagram Post vs Story Size

Dimensions and specs

Instagram Post	1080 x 1350 px; 4:5
Instagram Story	1080 x 1920 px; 9:16

Formula

How to calculate this size

Print formulapixels = inches x PPI

Convert physical size to inches, then multiply each side by the target PPI.

Digital formularatio = width / height

Match the target aspect ratio before exporting to avoid unexpected crop or padding.

Bleed formulafull size = trim + bleed x 2

Add bleed to both sides of each dimension before calculating the final canvas.

Tools

Resize workflow

Open both source pages before exporting. If the aspect ratios differ, rebuild text and safe-area placement instead of only scaling the same artwork.

Decision

Which one should you use?

Use Instagram post size for feed and carousel graphics. Use Instagram Story size for full-screen vertical creative that must avoid top and bottom app UI.

Compare

Dimensions and crop

Asset	Size	Best use
Instagram Post	1080 x 1350 px; 4:5	Use when the destination is Instagram Post.
Instagram Story	1080 x 1920 px; 9:16	Use when the destination is Instagram Story.

Related pages and tools

reference Instagram Post reference Instagram Story tool Open in Compare Sizes tool trust Methodology Formulas, rounding rules, bleed assumptions, platform confidence labels, and source handling. trust Editorial Policy How PixelMeasures reviews sources, labels confidence, and handles correction reports.

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References

Sources and references

Dimensions come from PixelMeasures reference entries and listed source documentation. Area, aspect-ratio, and crop implications are calculated editorial guidance.

Instagram Help: Image resolution of photos you share
Official Instagram photo upload guidance for width and supported aspect ratios.
Instagram Help: Reel size and aspect ratios
Official Instagram guidance for reel ratios, minimum resolution, and cover photo ratio.

Last checked: 2026-05-03