The Instagram Story size is 1080 × 1920 pixels at a 9:16 aspect ratio – that's the resolution the Story format is built for, whether you're posting a photo or a video. Upload something in a different ratio and Instagram won't show an error; it will just quietly hand you black bars, a hard crop, or text sitting exactly where its own interface elements cover it.
Instagram Story size: the exact dimensions for 2026
These numbers have been stable for years and apply identically to photos and video:
- Target size: 1080 × 1920 pixels
- Aspect ratio: 9:16 (vertical, full-screen)
- Photo file formats: PNG, JPG, or a non-animated GIF (source: Buffer)
- Video file formats: MOV or MP4 (source: Buffer)
- Maximum length per segment: 60 seconds – a longer video gets automatically split into multiple segments by Instagram; the size stays the same either way
Upload the file at that exact resolution wherever possible. A smaller source image gets scaled up by Instagram, which produces the same visible blur that shows up when a profile picture is uploaded too small.
The safe zone: where text and stickers are actually safe
Instagram overlays its own interface on every Story: the profile bar with the name and close icon at the top, the reply field and reaction icons at the bottom. Anything sitting inside those bands gets partially or fully covered for the viewer.
Instagram itself does not publish an exact pixel spec for this on organic Stories – the numbers in circulation come from tool vendors working backward from their own screenshots, and they don't fully agree:
- Buffer recommends leaving roughly 250 pixels clear at both the top and the bottom – a safe core area of about 1080 × 1420 pixels.
- Hootsuite works from a safe area of 1080 × 1610 pixels, centered in the frame – a noticeably smaller margin than Buffer's.
The two disagree because neither is an official Instagram number – both are vendor estimates. Rather than picking one as "correct": designing to the larger margin (Buffer's ~1080 × 1420 core area) satisfies both, since the smaller safe zone sits entirely inside the bigger one. It costs nothing in your layout and protects more reliably against cropped or hidden text.
Story format vs. other Instagram formats
One reason the wrong format is such a common mistake: Instagram uses a different aspect ratio for almost every format, and they all sit close together.
- Story (9:16): 1080 × 1920 pixels – full-screen, vertical
- Feed post, square (1:1): 1080 × 1080 pixels
- Feed post, vertical (4:5): 1080 × 1350 pixels
- Reel (9:16): 1080 × 1920 pixels – the same dimensions as a Story, but with its own rules for length and the safe margin around the caption and account name
Reels and Stories share an aspect ratio, but not the same safe zone – the interface elements sit in slightly different places. If you want one asset to work for both, center your text and give it a generous margin regardless of the platform. For the Reel format specifically, see our guide to the optimal Instagram Reels length.
What happens with the wrong format
Instagram doesn't warn you on upload – it silently adapts the format instead:
- Square or landscape image: Instagram fills the rest of the 9:16 frame with black (or softly blurred) bars above and below.
- Wrong-ratio image that gets zoomed instead of letterboxed: Instagram center-crops to 9:16, cutting off whatever falls outside the new frame.
- Undersized source image: Instagram scales it up to reach 1080 × 1920 pixels, which shows up as visible blur.
Which one happens depends on your source ratio, and you get no warning beforehand either way. Checking the Story preview before you post is the only way to catch bars or a bad crop before your audience does.
Example: weak vs. good
- Weak: reusing a square 1:1 feed photo directly as a Story – the result is wide black bars top and bottom.
- Good: cropping the shot to 9:16 yourself before uploading, then placing text only inside the safe core area.
Common mistakes
- Posting feed images unchanged as Stories. A 1:1 or 4:5 feed format doesn't fit 9:16 and produces bars or an uncontrolled crop.
- Placing stickers or a call-to-action too close to the top or bottom edge. That's exactly where the profile bar and reply field sit – a common miss with Story templates built in design tools that aren't matched to Instagram's own interface.
- Only checking on desktop. The interface elements look different on a phone than in a planning tool's desktop preview – the only reliable test is the actual Story preview inside the Instagram app.
If your Story format is dialed in but the reach isn't following, how Startviral works covers paid creator ads built for Instagram. For content to actually fill the format, our guide to Instagram Story ideas has angles for when you're out of ideas, and if Highlight covers are next on your list, our Instagram Highlight covers guide has the matching dimensions.
Conclusion
1080 × 1920 pixels, a 9:16 ratio, and text placed a little further from the edge than you think necessary – that's everything a technically clean Instagram Story needs. Once the format is right, see Startviral pricing for how paid creator ads turn it into reach that compounds.
Frequently Asked Questions
What is the Instagram Story size in 2026?
1080 × 1920 pixels at a 9:16 aspect ratio is the size Instagram builds Stories for, for both photos and videos. Upload the file at that exact resolution rather than letting Instagram upscale something smaller.
What is the safe zone on Instagram Stories?
The area covered by Instagram's own interface elements – the profile bar at the top, the reply field at the bottom. Buffer recommends leaving roughly 250 pixels clear at both the top and bottom; Hootsuite works from a safe area of 1080 × 1610 pixels centered in the frame. Both are approximations, not an official Instagram spec for organic Stories – the larger margin is the safer bet.
What happens if I upload an image in the wrong format?
Instagram never shows an error – it silently adapts the format instead. A square or landscape image either gets black bars added above and below, or gets center-cropped to 9:16, which can cut off the edges of your subject depending on the source ratio.
Does the same size apply to Story videos as to photos?
Yes. Videos use the same 1080 × 1920 pixels at 9:16. Per Buffer, Instagram accepts PNG, JPG or GIF for photos, and MOV or MP4 for video.
How long can a single Story segment be?
A single Story segment can run up to 60 seconds; anything longer gets automatically split into multiple segments by Instagram. That doesn't change the size – every segment still runs at 1080 × 1920 pixels.
The startviral team supports creators with social growth. We write about algorithm research, Creator Ads, and sustainable growth.
