How to Resize an Image or Picture for Posting on Instagram

December 22, 2023Ashley Mae

As one of the most popular social media, Instagram has accumulated hundreds of millions active users around the world. According to our research, image post is still the most prevalent type although you can share video stories on Instagram now. However, you may find that many photo posts are distorted or stretched. That is why you should learn our guide carefully, resizing an image for Instagram in various situations and producing attractive post.

Resize Photos for Instagram

Part 1. Current Instagram Image Formats and Sizes

Instagram Sizes

As updates, Instagram now allows you to share several kinds of photo posts. They are working with different photo size rules and we will share them in the table below.

Post type Display image size(px) Aspect ratio Maximum image size(px)
Profile 110 by 110 1:1 180 by 180
Photo post 600 by 600 1:1 1080 by 1080
Horizontal photo post 600 by 400 16:9 1080 by 608
Vertical photo post 480 by 600 4:5 1080 by 1350
Instagram Story 9:16 1080 × 1920
IGTV cover photo 420 by 654 1:1.55 420 by 654
Square ad 640 by 640 1:1 1080 by 1080
Landscape ad 640 by 400 1080 by 566

It is essential to know the exact dimensions of every type of Instagram post in order to avoid photo distortion and stretch. Therefore, the first step to share photos is to resize your photos and images for Instagram.

Instagram supported photo formats include JPG, PNG, JPEG, BMP and non-animated GIF. If you post a picture on Instagram, the social media will convert it into JPG. Therefore, you'd better start with a JPG, which will preserve your photo quality.

Part 2. Best Ways to Resize Images for Instagram on PC

Sometimes, you take a photo with your camera or smartphone but find it not good enough. Is there any way to resize a picture for Instagram as well as enhance quality? Aiseesoft AI Photo Editor can meet your needs. Start from the free download and learn how to resize pictures for Instagram.

Aiseesoft AI Photo Editor


Aiseesoft AI Photo Editor

  • Resize photos for Instagram with several simple steps.
  • Enhance image quality using AI technology.
  • Supports a wide range of photo formats.
  • Multiple resize or upscaling levels to choose from.
Free DownloadFor Windows

Secure100% Secure. No Ads.

Free DownloadFor macOS

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Step 1.
After the free download, install and open the AI Photo Editor on your computer. Click on the Log in button in the top right corner.
Step 2.
Transfer your photos from your phone to your computer. Import the image files by clicking on the Select Image(s) button. Or directly drag them to the interface center.
Select Image
Step 3.
You have four options to resize your Instagram photos, including 2×, 4×, 6× and 8×. Choose one from them and click on the Start button.
Choose Upscale Level
Step 4.
Head to the bottom and click on the three-dot button to choose where to save the images. Finally, click on the Save button.
Select Image

After Step 4, you can immediately view your resized photo(s) for Instagram. They seem to come into life vividly and without any watermark. The powerful image resizer has an online version as well. You can visit it by going to the Online Image Upscaler in your browser. They offer pretty much similar features, which allow you to resize and upscale images with simple and quick steps.

Part 3. How to Resize Images for Instagram on iPhone and Android

Resize Image for Instagram with the Default Tool

As a mobile social network, users access Instagram on mobile devices primarily. Resizing an image for Instagram with an app is the easiest choice for mobile-first. We use iPhone as an example to show you to workflow.

Step 1.
Take a photo on your iPhone. Then go to the Photos app, find the photo and open it in full screen mode.
Resize Photo Instagram
Step 2.
Tap the Crop icon and then touch the rectangular icon in the lower right corner.
Step 3.
When prompted, choose a proper aspect ratio for Instagram, such as 4:5, Square, or 9:16.
Step 4.
Then adjust the photo and tap Done to confirm it. Bear in mind that the original photo will be replaced.

Note: When it comes to Android phone, you will need a third-party photo editor app if the built-in Gallery app does not provide crop tool.

Resize Images for Instagram with a Higher Resolution

If you want to resize photos for Instagram on your phone and don't want to lose any details, Picwand won't let you down. It's an AI-powered image upscaler that is able to enlarge your resolution up to 8×. With it, it's possible to upscale your image to 4K. No matter whether you want to resize a selfie, group photo, or anime, it handles every type of image for Instagram. Let's take a look at how to use Picwand to resize photos on your phone.

Step 1.
Download Picwand from the App Store or Google Play on your iPhone or Android.
Step 2.
Open it and click on the + button to select a photo.
Step 3.
Choose which level you want to resize and tap Upscale.
Step 4.
After the process, save the photo by clicking on Save Now.
Fix Low Resolution Photos Via Picwand

Part 4. FAQs about Resizing Image for Instagram

Can I resize a picture for Instagram without cropping it?

It depends on the aspect ratio of your original image. If it matches the Instagram aspect ratio, the photo can be uploaded directly. Otherwise, Instagram will stretch it if you did not crop.

How to stop Instagram from cutting my pictures?

The only way to prevent Instagram from cutting your pictures is to resize them before uploading to your social media account.

Can I crop an Instagram photo after posting?

No, once you post a photo on Instagram, it will be hosted to the server. Every time when you crop the photo, you have to upload it again.


Now, you should learn how to resize an image for Instagram on computer and mobile devices. Firstly, you should master the dimensions of various types of Instagram posts based on our sharing. Then, Aiseesoft AI Photo Editor can help you resize your photos and restore low-resolution photos easily if you prefer to process photos on the computer. Of course, you can resize your photos on your smartphone directly after shooting. If you have other problems, please feel free to leave a message below, and we will reply to it as soon as possible.

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