Instagram Story Size in 2026: Exact Dimensions, Ratio and Specs for Every Placement

The Instagram story size is 1080 x 1920 pixels at a 9:16 aspect ratio, and the same spec covers organic stories, Story ads, and Reels. Instagram accepts 1.91:1 through 9:16, but only true 9:16 fills the screen with no cropping and no blurred bars.

1:1

9:16

Creative stuck in 1:1? Ship it in 9:16.

The free Meta Ad Resizer extended this exact square ad into the story frame: no cropping, subject and text intact. About 20 seconds per format.

Resize an ad free

Instagram Story Size at a Glance

Every number below is checked against Meta's design requirements for Instagram Stories ads and Buffer's Instagram image size guide, July 2026. If the spec guide you found ranks for 2024, close it; the video rules changed.

• Resolution: 1080 x 1920 px (width x height)
• Aspect ratio: 9:16, with 1.91:1 to 9:16 accepted
• Images: JPG or PNG, 30 MB max
• Video: MP4 or MOV, H.264 + AAC, 4 GB max
• Video length: up to 60 seconds per card; longer uploads auto-split into consecutive cards

Instagram Story Dimensions in Pixels

Oversizing is safe: Instagram downscales a 2160 x 3840 file cleanly. Undersizing is where quality dies. 720 x 1280 and 900 x 1600 are valid 9:16 files that upload without complaint, then get stretched across screens that render far more than 1080 logical pixels and ship soft. Nothing below 1080 wide should leave your export dialog; against a 30 MB cap the file size difference is noise.

Instagram Story Ratio: 9:16, Accepted Range 1.91:1 to 9:16

Instagram accepts the full 1.91:1 to 9:16 range it uses across feed formats, but accepted is not full-screen. A 1.91:1 upload posts as a strip in the middle of the frame with blurred filler above and below. 9:16 is the only ratio that maps one-to-one onto the story canvas; everything else gets padded, scaled, or cropped.

Specs by Placement: Organic Story vs Story Ad vs Reel

Three placements share the 1080 x 1920 canvas and differ on minimums, formats, and length caps.

The 600 x 1067 minimum is an ads-only floor from Meta's Stories ad requirements, there so Ads Manager can reject unusable files, not a target. The 1440 x 2560 recommendation arrived with Meta's March 2026 unified creative update: flagship phones render more than 1080 logical pixels, so a 1080 export gets upscaled at display time and edges soften. 1080 x 1920 is the baseline; 1440 x 2560 is the export that survives a Pro Max screen.

Reels accept videos past 3 minutes, but Instagram flags longer cuts as not recommended for new-audience reach. Treat 3 minutes as the cap and under 15 seconds as the performance sweet spot.

Image Specs: Formats, File Size, and the Ads Minimum

JPG and PNG work across all three placements. Buffer also lists BMP and non-animated GIF for organic uploads; do not test that in paid. The 30 MB cap is enormous for a 1080 x 1920 still; a JPG at 90% quality lands around 1 to 2 MB.

The number stale guides omit: Story ads hard-floor at 600 x 1067. Below that, Ads Manager rejects the file. Between 600 and 1080 wide, it accepts the file and the ad just looks bad. Meta charges the same CPM either way.

Video Specs: The 60-Second Rule, Formats, and File Limits

The most-repeated stale spec is the 15-second story chop. That ended in 2022. A native upload of up to 60 seconds plays as one continuous story card, and anything longer auto-splits into consecutive cards (source: Kapwing). Story ad videos run 1 to 60 seconds per card.

• Formats: MP4 or MOV organic; Story ads also accept GIF
• Codec: H.264 video, AAC audio
• Frame rate: 30 fps
• File cap: 4 GB

Instagram re-encodes every upload, so hand it a source it does not have to fight: 1080 x 1920 at roughly 4 to 8 Mbps. A starved bitrate is the usual reason a story that looked crisp in the editor ships muddy.

The Safe Zone in One Line

Keep critical text and faces out of the top and bottom ~250 pixels on organic stories, and out of the top 14%, bottom 35%, and side 6% on Story and Reels ads. That is the whole rule. For the full diagram, the per-placement overlay tables, and where Instagram's UI actually covers your design, read our deep dive on Instagram story safe zones.

What Happens If You Upload the Wrong Size or Ratio

Instagram never shows an error for a wrong-ratio upload. It quietly degrades the post, and each ratio fails differently.

9:16 · 1080 x 1920Fills the screen edge to edge

4:5 · 1080 x 1350~70% of the canvas, scaled up soft

1:1 · 1080 x 1080~56% of the screen, the rest is filler

The same ad uploaded at three ratios. Only 9:16 uses the whole screen; the bars are what Instagram actually shows.

4:5 (feed portrait, 1080 x 1350): slightly shorter than the story frame, so Instagram scales it up toward 9:16. The image reads enlarged and a touch soft, edge content can slip out of frame, and at native scale it covers about 70% of the canvas.

1:1 (square, 1080 x 1080): letterboxed with blurred bars above and below, or zoom-cropped to fill on tap. A square covers roughly 56% of the story screen; nearly half of what runs is filler.

Landscape (16:9 or 1.91:1): accepted, since 1.91:1 is the bottom of the range, but it sits as a small strip with large blurred bands. A 16:9 file covers about a third of the screen.

If the square or 4:5 export is the only asset you have, run it through the free Meta Ad Resizer instead of re-exporting from the design file: it rebuilds the missing canvas to a true 1080 x 1920 in about 20 seconds, so none of the three failures above ever renders.

Blur is a separate failure. If a true 9:16 story still looks fuzzy, the source was under 1080 wide or over-compressed before upload; Instagram compresses again on its side and the two lossy passes stack.

How to Resize a Story to 9:16 Without Cropping

Cropping a square or 4:5 asset to 9:16 by hand usually amputates the subject, the headline, or both, which is why so many wrong-ratio stories ship with blurred bars. The free Meta Ad Resizer skips the tradeoff: upload the creative, pick Stories and Reels, and it extends the background to fill the vertical frame while the subject and text stay intact. About 20 seconds per format, with an instruction field for layout calls like "leave space on the left for a headline".

The Copy-Paste Cheat Sheet

Everything on this page in one block, ready for the creative brief or design ticket.

INSTAGRAM STORY SIZE CHEAT SHEET
Size: 1080 x 1920 px
Ratio: 9:16 (accepts 1.91:1 to 9:16)
Image: JPG or PNG, max 30 MB
Video: MP4 or MOV (H.264 + AAC), max 4 GB, 30 fps
Video length: up to 60 sec per card organic, 1 to 60 sec for ads
Story ad minimum: 600 x 1067 px
High-density Story ad export: 1440 x 2560 px
Safe zone: ~250 px top and bottom organic; 14% top, 35% bottom, 6% sides for ads

And if the asset attached to that ticket is still square or 4:5, run it through the free Meta Ad Resizer before it goes anywhere near Ads Manager.

Instagram Story Size FAQ

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