** A USER GUIDE FOR SMALL BUSINESS OWNERS **
Fully checked and up-to-date for 2026 (as of 16 July '26)
If you’ve ever uploaded an image to Instagram only to find it looks blurry, cropped in a strange way, or just “off” in the feed – you’re not alone. Instagram has changed its preferred image sizes several times over the years, and I know that can leave small business owners feeling unsure about what’s “right” anymore!
The good news? Once you know the best Instagram image size for 2026, creating polished, eye-catching visuals for your posts and carousels becomes much easier. In this guide, I’ll explain why image size matters, which current dimensions I recommend that you use, and some simple Canva tips to help you create visuals that look professional without taking hours.
*Canva is the free graphic design tool that I use and suggest for small business owners, so you can create fuss-free marketing content.
And if you’d like a handy cheatsheet to keep by your desk, I’ve created a free PDF guide that shows and compares the different Instagram image sizes in one place – so you never have to second-guess again.
Why Does Image Size Matter on Instagram?
Instagram is a very visual platform. Your image size determines how much space your post takes up on someone’s feed – and that can make the difference between someone stopping to read… OR scrolling straight past.
- The right size fills more of the screen, grabs attention, and avoids awkward cropping.
- The wrong size can make your post look small, cut off important details, or even look less professional.
For example, square posts (typically that measure 1080 x 1080 pixels) are fine but look smaller in the feed. Portrait posts (1080 x 1350 px) take up more space, meaning they’re harder to miss – and that can give your business an edge when competing for attention.
What is the Best Instagram Image Size, 2026?
After testing and reviewing Instagram’s latest updates, the best Instagram image size in 2026 is 1080 x 1350 pixels (portrait orientation, in 4:5 ratio).
Here’s why:
- It fills the maximum amount of vertical space without being cropped.
- It looks polished when displayed on your Page grid.
- It’s flexible – works well whether you’re sharing a graphic you've designed in Canva, or using a photo from your phone.
Some slightly taller images (1080 x 1440, ie a 3:4 ratio) are now accepted, but these will be cropped in the feed. To keep things simple and safe, 1080 x 1350 is the sweet spot I recommend for most small business posts, including carousels.
Pros of 1080 x 1350:
✅ Makes your post more visible in the feed
✅ Easy to create with the help of Canva templates
✅ Professional and consistent look
Cons:
⚠️ May require resizing if your original image is a landscape photo
⚠️ Takes a bit of planning if you’re not used to portrait posts; I think it's very quick to get used to, though!
Canva Tips for Creating Optimally Sized Images
You don’t need to be a designer to get this right. Canva makes it straightforward to create on-brand, perfectly sized Instagram visuals to accompany your posts. Here are a few easy tips:
- Start with the right template – Search “Instagram Portrait Post” (1080 x 1350) in Canva so you don’t have to resize later. Beginning with the right 'blank canvas' and helpful template elements, is a real boon.
- Keep text in the safe zone – Place your most important words/ elements in the centre of the image, so they don’t risk being cropped when previewed. (This also applies for Reels cover graphics too, by the way!)
- Use your Brand Kit – Upload your logo, and pay attention to your font and colour choices for a consistent brand identity. If you use Canva Pro, you can upload these, then apply them to every post for consistency. If you're just using the free version of Canva, don't worry, I suggest checking the colours and fonts you've used before to make sure you're maintaining the same brand awareness and messaging.
- Keep it simple – A clean design with space to breathe, and that's easy to read even on a small phone, will look more professional than cluttered, overwhelming text and images.
Do You Really Need to Worry About Image Size?
The short answer: it helps, but it’s not everything.
- Pros of optimising: Your posts look more professional, fill more of the screen, and avoid frustrating cropping issues.
- Cons: It can feel like “one more thing” to remember when you’re already short on time. I get it.
Here’s the truth: not every post has to be perfect. Sometimes an authentic, slightly imperfect photo will connect more with your audience than a polished graphic. And not everyone always has the extra few minutes it'll take. But if you want your marketing to consistently look professional and grab attention, using the best Instagram post dimensions is a quick win. Those simple-to-customise templates are going to be your friend.
Free Beginner’s Guide: Instagram Image Sizes 2026
Still feeling unsure? That’s exactly why I created my free PDF guide. It shows you, at a glance, the different Instagram image sizes and how they display in the feed and grid – complete with examples for comparision.
So you can feel confident you’re choosing the right one every time.
This guide was designed specifically for small business owners and solopreneurs who don’t have hours to figure out techy details. With it, you’ll save time, avoid frustration, and build a more professional-looking Instagram presence.
👉 Download your free PDF guide here
Conclusion
Getting your image sizes right on Instagram doesn’t have to be complicated. In 2026, the go-to size to remember is 1080 x 1350 pixels – it’s the best Instagram image size for filling the feed and looking professional.
Use Canva’s ready-made templates, my top tip is to keep your designs simple, and you’ll soon feel confident creating visuals for your posts and carousels that not only look good but also get noticed.
And don’t forget – grab my free PDF guide so you’ve always got the Instagram image size 2026 cheat sheet at your fingertips.
Happy posting! Ruth 🙂
- This blog article was written by me, Ruth sharing my own knowledge along with my own opinions, experiences and examples. I did seek the help of AI for tips on improving the pillar structure (H1, H2) for SEO crawling purposes. I'm a marketing expert, but not an SEO expert.
