If you’re trying to build an audience on Instagram, the word “algorithm” is probably on your mind more than you’d like to admit. Among the questions you’ll be asking yourself are: Is it working for you or against you? And, perhaps more importantly, how can you get it on your side? It can seem completely bewildering. Why does one post reach thousands of people overnight, while another disappears into the scroll-hole abyss?
But Instagram’s algorithm is not some mysterious force that randomly decides which creators succeed. It’s simply a complex system of signals that determines which content is most relevant and interesting to each individual user. It predicts what people are most likely to engage with by analysing everything from what they watch and how long they watch for to what they comment on, share, and save.
In other words: If you want your content to thrive, you need to understand how the algorithm thinks and learn how to work with it. For content creators, it is absolutely essential.
Here’s everything you need to know about the Instagram algorithm and how you can give your content the best chance of being discovered.
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Instagram does not have one single algorithm controlling the entire app. Instead, different parts of Instagram – including Feed, Reels, Stories, and Explore – use ranking systems designed around how people interact with each feature. “Across all of Instagram, our algorithm relies on signals based on how you interact with the app and how other people interact with you,” Adam Mosseri, the head of Instagram, says in a video post.
Instagram Feed
Your main feed is where Instagram predicts which posts from accounts you follow will matter most to you. The algorithm considers your relationship with the creator, the type of content you usually engage with, and how much interest a post gets from other users. “The Instagram Feed AI system automatically orders the posts in your feed by predicting what you will find most valuable and relevant,” explains a blog post published by Instagram’s parent company, Meta.
If someone regularly comments on your posts, watches your videos, or shares your content, Instagram is more likely to show them your future posts near the top of their feed. That means engagement quality often matters more than simply chasing likes.
Instagram Reels
The Reels algorithm works differently from the Feed because it is designed around discovery. Reels want to introduce you to new creators; to do that, they analyse how often a Reel is watched the whole way through, if it is replayed or shared, and how many people comment on it. If it performs well in all those areas, it will likely be shown to more people.
That is why factors such as a strong opening in the first few seconds and unique editing are particularly important.
Instagram Stories
Stories are focused on the relationships you already have on Instagram. In other words: the people you follow!
The algorithm prioritises accounts that users interact with most frequently, whether through direct messages, reactions, replies, or regular viewing of their Stories. “If you DM often or know each other on Facebook, Instagram assumes they’re part of your ‘inner circle,’ and those accounts get a fast-pass to the front,” Alyssa Hirose writes for social media scheduling tool Hootsuite. For creators, Stories can be an effective way to strengthen connections with followers by sharing extra, immediate content or asking questions through polls.
Instagram Explore page
The Explore page is one of Instagram’s biggest discovery tools, because it’s designed almost entirely to help users find new accounts. As a creator, the Explore page is very important for growing your following, because it places your content in front of people who may not have seen it before.
Instagram selects posts for Explore based on content a user has previously interacted with, so it’s worth fostering engagement on your posts if you want your content to feature. Someone who frequently watches and likes food recipe videos, for example, will probably see more recipe videos from creators they don’t yet follow.
Credit: Mitriakova Valeriia/Shutterstock
Engagement
Likes, comments, shares, and saves all tell Instagram that people are finding value in your content.
Not all engagement is created equal, however. A share suggests that someone thought the content was worth passing on, while a save suggests they want to return to it later. Both of those are worth more than a like. “Shares carry more weight than ever,” Talar Mazloumian writes for influencer marketing platform Later about the Instagram algorithm in 2026. “Instagram has confirmed that sends and shares are now among the most important ranking signals across all surfaces.”
Watch time
For Reels especially, watch time is crucial. If viewers scroll away immediately, Instagram receives a signal that the content did not capture attention.
There are lots of ways to try to increase watch time, as social media expert Chelsea Peitz explains. “Enhance accessibility and boost engagement by adding closed captioning or subtitles,” she says. “The first one to three seconds of your Reel are crucial. You must grab attention and build curiosity right from the start.”
Relationship with your audience
Instagram wants to show users content from accounts they are genuinely interested in. Regular conversations, replies to comments, and interactions through Stories can help build stronger signals between you and your audience.
Posting inconsistently
Uploading five posts in one week and disappearing for a month can make it harder to build momentum. Consistency helps your audience know when to expect content and gives Instagram more opportunities to understand who you are as a creator.
Focusing only on follower numbers
A large following does not automatically guarantee strong reach. Instagram prioritises content that people engage with, which means an active, interested audience should be the top priority.
Not engaging actively
Remember: Instagram is a social platform, so building a community is absolutely essential. That means replying to comments and asking questions.
Not sticking to a niche
The Instagram algorithm wants to understand who you are and what type of content you create. If you’re constantly posting unrelated content – perhaps a food video one day, a fashion post the next, and a guide to the best things to do at the weekend after that – it becomes harder for Instagram to understand who your content is for and who is most likely to engage with it. Before you start posting, decide upon a niche.
Posting bad videos
Here’s the handicap no one likes to mention. If your content isn’t up to scratch, it usually won’t perform well. Every video or post should have a purpose. Think about what you want each one to achieve before you press the Share button. Instagram is always thinking about what makes content valuable – and, as a creator, you have to prove your worth.
