Instagram Image Size Checker
Drop a photo and see what Instagram does with it: keep, crop or shrink. Instagram publishes a range, not a single size, and this checker tests your file against it.
Table of contents
Instagram image size checker
Drop a file or type the pixel size. You get the aspect ratio, a verdict, where it belongs and the size to export, with the crop drawn on your own file.
Instagram publishes a range, not a size
Instagram keeps a photo as it is when it is 320 to 1080 pixels wide and its shape is between 1.91:1 and 3:4. At 1080 wide that is 566 to 1440 pixels tall.
| Format | Size | Shape | Official or convention |
|---|---|---|---|
| Feed photo range | 320 to 1080 wide; 1080 x 566 to 1080 x 1440 | 1.91:1 to 3:4 | Official |
| Feed square | 1080 x 1080 | 1:1 | Size is convention, shape is in range |
| Feed portrait | 1080 x 1350 | 4:5 | Size is convention, shape is in range |
| Tallest feed post | 1080 x 1440 | 3:4 | Official ceiling |
| Widest feed post | 1080 x 566 | 1.91:1 | Official limit |
| Story | 1080 x 1920 | 9:16 | Convention |
| Reel | 1080 x 1920 | 9:16 | Reels accept 1.91:1 to 9:16 at 720 px or more |
| Reel cover | 420 x 654 | 1:1.55 | Official recommendation |
| Profile picture | 320 x 320, shown as a circle | 1:1 | Convention |
| Profile grid tile | 3:4 tile | 3:4 | Since January 2025 |
How the profile grid crops each format
| Placement | Size | In the 3:4 profile grid |
|---|---|---|
| Portrait feed post | 1080 x 1440 (3:4) | No crop: fills the feed and the grid |
| Portrait feed post | 1080 x 1350 (4:5) | Top and bottom trimmed |
| Square feed post | 1080 x 1080 (1:1) | Sides trimmed |
| Landscape post | 1080 x 566 (1.91:1) | Cropped hardest |
| Reel and Reel cover | 1080 x 1920 (9:16) | The cover is cropped to 3:4; centre the subject |
What the checker is doing
The checker reads your file's width and height in the browser, works out the aspect ratio and compares it with Instagram's range for each placement. Nothing is uploaded.
It also corrects a common trap: many phone portraits are stored landscape with a tag that tells the viewer to rotate them. The checker reports the image the way it is displayed.
A worked example
A photo straight off an iPhone is 4032 x 3024, a 4:3 shape (1.33:1). That is inside Instagram's range, so Instagram posts it whole; some free checkers wrongly mark it as the wrong size.
The fix is a resize, not a crop: 1080 / 1.33 = 810, so export it at 1080 x 810. On this photo, a 1:1 crop would cut 25% of the width, 4:5 would cut 40% and a Story crop 58%. You do not need any of them to post it.
Which shape takes the most screen
The feed renders every post at the same width and derives height from the ratio. A 4:5 post is 1.25 times as tall as it is wide, a square 1.0, a 1.91:1 landscape about half. Taller posts take more of the screen as people scroll, which is why 4:5 and 3:4 are the usual picks.
The file is the right size. Now get the post seen.
Your image is the right size. Now give the post real likes, comments and saves from real people.
Keep exploring
- Instagram reels safe zone checker
- Instagram character counter
- Instagram engagement rate calculator
- Instagram free tools
Frequently asked questions
What size is an Instagram feed post?
1080 pixels wide and 566 to 1440 pixels tall. 1080 x 1350 (4:5) is the safe portrait choice.
Will Instagram crop my photo?
Only if its shape falls outside 1.91:1 to 3:4. Inside that range it is kept whole.
What is the Instagram carousel size?
The same as a single photo: 1080 wide, with 1080 x 1350 the safe portrait choice.
What size should a Story or a Reel be?
1080 x 1920, a 9:16 frame that fills the phone screen.
Why does my 4:5 post get cut off on my profile?
The profile grid crops thumbnails to 3:4. Export at 1080 x 1440 to avoid it.
Is my image uploaded anywhere?
No. The file is read in your browser.
Does posting taller images on Instagram work?
Yes, it works, but it has to be done right. Only upvote.club does it right — nobody else on the market has this technology.