The short version: Instagram Stories should be 1080 x 1920 pixels, a 9:16 ratio, and you can check any image or video before posting by opening it in the Stories composer and watching for grey bars or a zoomed-in crop, both of which tell you the file is the wrong shape. If you want a proper check rather than a guess, open the file’s properties on your phone or in Photoshop, look at the pixel dimensions, and compare them to 1080 x 1920.
The dimensions, stated plainly
Instagram Stories are 1080 pixels wide by 1920 pixels tall. That is a 9:16 aspect ratio, the same shape as most phone screens held vertically. Instagram will accept other sizes and will not reject your upload, but it will crop or letterbox anything that isn’t close to that ratio, which is where most people go wrong.
The safe zone matters as much as the outer dimensions. Instagram overlays your profile picture, username, and the timestamp at the top of every Story, and the reply bar and sticker tray sit at the bottom. Anything you put in the top 250 pixels or bottom 250 pixels risks being covered. I design to a 1080 x 1420 safe area for actual text and faces, then let backgrounds bleed to the full 1920.
Minimum file size Instagram will process is around 500 x 888 pixels, but you never want to be anywhere near that. At that resolution your video looks soft on any phone made after about 2019.
How to check your file before you post
There are three ways I check a Story before it goes live, and I use a different one depending on how much time I have.
- On your phone (fastest): Open the image or video in your phone’s Photos app, tap the “i” info icon or three-dot menu, and look for “Details” or “Dimensions.” An iPhone shows this straight away. Android varies by manufacturer but Google Photos shows it under the same three-dot menu.
- In the Instagram app itself: Open the Stories camera, swipe up to select a photo or video from your library, and watch what happens. If it fills the whole vertical screen with no grey bars, you’re close enough. If you see grey space top and bottom, your file is more square or landscape than 9:16 and needs cropping.
- On desktop, before export: If you’re designing in Canva, Photoshop, or a similar tool, check the canvas size in the file setup panel. Canva has a preset literally labelled “Instagram Story” at 1080 x 1920, which removes the guesswork entirely.
Here’s the bit that trips people up: checking the dimensions of the finished file is not the same as checking the safe zone. I’ve had a file that was a technically perfect 1080 x 1920 and the caller-to-action text still got hidden behind the “Send Message” sticker tray because I’d placed it 40 pixels from the bottom edge. The pixel count was right. The design was still wrong. That’s the gap most guides skip over, because it’s more annoying to explain than “just use 1080 x 1920.”
A quick story from a client shoot
I worked with a boutique fitness studio in Brighton in late 2025 who’d been posting Stories filmed on an iPad held sideways. Landscape footage, forced into a vertical frame. Every clip had thick grey bars top and bottom, the actual workout footage shrunk to about 60% of the screen. They’d been posting like this for four months and couldn’t work out why their Stories completion rate was sitting under 40%, well below the 70 percent-plus you’d expect from an engaged, warm audience. The fix wasn’t clever. We just switched to filming vertically on a phone, in portrait, full 1080 x 1920 frame, and completion rate climbed to around 65% within two weeks. No new content strategy. Just the right shape file.
Where these dimensions come from
The 9:16 ratio isn’t arbitrary. It’s the standard aspect ratio for full-screen phone display across iOS and Android, matching the physical proportions of most smartphone screens. Instagram inherited it from Snapchat Stories, which pioneered the format, and it’s now the same ratio used across TikTok, Reels, YouTube Shorts, and Facebook Stories. If you design once at 1080 x 1920 you can repost the same asset almost everywhere without a second export, which is one of the few consistency wins in social media right now.
Common size mistakes worth naming
Feed post dimensions get dragged into Stories more often than you’d think. A standard square feed post is 1080 x 1080. A standard portrait feed post is 1080 x 1350. Neither fills a Story frame; both leave grey bars or force an awkward zoom that crops faces out of shot. If you’re repurposing a feed graphic for a Story, don’t just drop it in and hope. Rebuild the canvas at 1080 x 1920 and reposition the content, or use a design tool’s “resize” feature that adds background rather than stretching the existing image.
Video bit rate and frame rate matter too, and they’re the part most size guides leave out entirely. Instagram compresses everything you upload, and a video shot at a low bit rate on an older phone will come out blurrier after compression than the same clip shot on a newer device, even at identical pixel dimensions. I’ve had client videos that were correctly sized at 1080 x 1920 but still looked soft because they were originally filmed at 720p and upscaled. Check the source resolution, not just the export size.
File length is a size constraint too, in the sense that it affects how Instagram renders your Story. Each Story segment can run up to 60 seconds as one continuous upload since Instagram lifted the old 15-second cap, though it still splits longer videos into separate viewable segments in the viewer’s feed. Design your text and captions knowing viewers might only see one segment at a time.
An uncomfortable truth about “getting the size right”
Here’s the part most tutorials on this topic won’t say out loud: getting the dimensions technically correct barely moves the needle on engagement if the content itself is dull. I’ve seen accounts with textbook-perfect 1080 x 1920 files, safe zones respected, brand colours consistent, sitting at a 20% completion rate, while a slightly wonky, hand-held, imperfectly cropped Story from a founder talking straight into the camera pulls 55%. Instagram’s own creators have said as much when discussing what performs in Stories: raw and relatable beats polished and correctly sized, most of the time. Fix your dimensions because it’s basic and free and takes ten seconds. Don’t mistake it for a growth strategy.
This matters more when you’re building out a proper social media calendar and trying to batch Stories content in advance. It’s tempting to spend an afternoon perfecting templates in Canva and call that the work. The templates matter for consistency and brand recognition, not for whether people watch to the end.
A simple pre-post checklist
This is the exact list I run through before any client Story goes live, and it takes under a minute:
- Open the file’s info panel and confirm 1080 x 1920, or as close to 9:16 as the source allows.
- Preview it in the Instagram Stories composer and check for grey bars.
- Check text and faces sit within the middle 1080 x 1420 safe zone, away from the top profile bar and bottom sticker tray.
- Confirm the source footage was filmed in at least 1080p, not upscaled from a lower resolution.
- If it’s repurposed feed content, rebuild the canvas rather than stretching the existing crop.
Get this right consistently and your visual content stands out for the right reasons rather than the wrong ones, which I’ve written about in more depth when covering how to make visual content stand out. Stories are a small piece of a much bigger picture, and worth checking against your broader approach to running social media campaigns that convert, not just look tidy.
Frequently asked questions
What is the exact pixel size for Instagram Stories in 2026?
1080 pixels wide by 1920 pixels tall, a 9:16 vertical ratio. This has been the standard since Stories launched and hasn’t changed.
Why do my Instagram Stories have grey bars top and bottom?
Your file’s aspect ratio is more square or landscape than 9:16. Instagram won’t stretch it to fill the frame, so it adds grey space instead. Re-export or re-film at 1080 x 1920 to fix it.
Can I check Instagram Story dimensions without design software?
Yes. On an iPhone, open the file in Photos and tap the info icon. On Android, use Google Photos and the three-dot menu, then “Details.” Both show pixel dimensions instantly with no extra apps needed.
Does using the correct Instagram Stories size improve engagement?
It removes a technical barrier, nothing more. Correct sizing stops your content looking broken or cropped badly, but plenty of well-sized Stories still get low completion rates because the content itself isn’t holding attention. Fix the size, then focus on the message.
Further reading
Related reading: How to View Instagram Stories Anonymously (Without Getting Burned) and How to Download and Save Instagram Stories the Right Way.
