Instagram Carousel Size Checker
Check that your carousel slides share one size and resize them for Instagram. Your images stay on your device.
Fill crops the picture around the middle. Fit keeps all of it and uses the background colour for the gaps. A JPG has no see-through areas, so it always gets a background.
How to use the Instagram Carousel Size Checker
- Choose one or more images. The checker lists each size and says whether it already matches.
- Pick the size you want. Choose Fill to crop to the edges, or Fit to keep the whole picture and add a background.
- Look at the previews and adjust the format, quality or background colour.
- Download each image, or all of them in a ZIP.
At a glance
| Portrait | 1080 × 1350 px (4:5) |
|---|---|
| Square | 1080 × 1080 px (1:1) |
| Landscape | 1080 × 566 px (1.91:1) |
| Slides | Up to 20 in one post |
| Privacy | Images stay in your browser |
Good to know
- Sizes are the ones commonly recommended at the time of writing. Apps change them, so check the app's own help page if a size matters.
- Making a small picture larger cannot add detail, so start from a picture at least as big as the size you want.
Questions
Do all slides need the same shape?
In practice yes. The first slide sets the shape and the others are cropped to match it, so give every slide the same size.
Which size is best?
4:5 portrait fills the most space in the feed.
Are my images uploaded?
No. They are resized in your browser and never sent anywhere.
More social media tools
- Instagram Post and Carousel PreviewWrite the post and carousel, add a picture and see it the way Instagram shows it, before you publish. Your text and pictures stay on your device.
- Instagram Text FormatterStyle words for Instagram, check the character count and preview the post before you paste it. Nothing is sent anywhere.
- Instagram Profile PreviewSee your bio, highlights and 3:4 grid before you post. Your pictures and text stay on your device.
- Instagram Reels Safe Zone CheckerSee which parts of a 9:16 Reel are covered by the top bar, the side buttons and the caption. Your picture or video stays on your device.
Need a picture for the post? Try the image resizer or image cropper.
CalcMaster is not affiliated with LinkedIn, Instagram, X, Facebook, Threads, Bluesky or TikTok. The names are used only to say which app a tool is made for. The previews are our own mock-ups.