How to Know If You’re Growing Faster Than Your Competitors on Instagram

You can’t answer that question by putting two follower counts side by side. A rival with 150,000 followers who added 3,000 last month grew 2 percent. Your account, at 8,000 followers, added 1,000 in the same window and grew 12.5 percent. Smaller account, bigger gain in every sense that matters. Follower count tells you where each of you stands today. Growth rate tells you who is actually gaining ground.

For a brand watching a handful of competitors, the useful comparison is never “who has more followers.” It’s “who is compounding faster, and is that gap opening or closing.” That’s a different calculation, and it takes a bit more than a glance at two profiles to get right.

Why Follower Count Alone Gets the Comparison Wrong

Bigger accounts add more raw followers almost by default, because a bigger base means more people discover them through search, suggested accounts, and existing followers sharing content. That doesn’t mean they’re growing faster in any way worth copying. It means the base effect is doing the work.

This is the same distortion that shows up when brands compare follower count instead of follower quality: a big number looks impressive and tells you almost nothing about direction or health. Comparing raw follower gains across accounts of different sizes has the identical problem. Without normalizing for starting size, the account with more followers will nearly always look like it’s “winning,” even when a smaller competitor is quietly outpacing it every month.

There’s a second reason the count alone is misleading: it only ever moves in one direction on the profile, since Instagram doesn’t surface unfollows next to the total. A competitor’s follower count can look stable while its actual growth rate is close to zero, with new follows roughly canceling out quiet unfollows underneath. Comparing the rate over a fixed window catches that. Comparing the number on the profile does not.

The Growth Rate Formula That Makes the Comparison Fair

Follower growth rate fixes the base effect by expressing the gain as a percentage of the starting count, not as a raw number:

Growth rate (%) = (Followers at end of period minus followers at start of period) divided by followers at start of period, times 100

Run it for yourself and for each competitor over the same window, ideally 30 days, and you get numbers that can actually sit next to each other. A competitor with 400,000 followers who gained 4,000 grew 1 percent. If you have 20,000 followers and gained 800, you grew 4 percent, four times their rate, even though their absolute number looks bigger on paper. That’s the comparison that should be driving strategy, not the raw follower badge on each profile.

Two conditions make the comparison valid: use the same time window for every account, and pick competitors close to your own size and niche. A local retail brand’s growth rate has little to say to a global apparel account with an entirely different audience ceiling.

A Worked Example: Two Competitors, One Formula

The formula is simple enough that it’s worth running through once with real-looking numbers, because the ranking can flip in a way a quick glance at follower counts would never catch. Say you track two direct competitors, both in the same niche, over the same three-month stretch:

By raw follower count, Competitor A looks like the one to worry about. It added the most people in absolute terms and still has the biggest audience by far. By growth rate, the picture flips: Competitor B is compounding more than three times faster than A, and faster than you too. Your own account sits in the middle, ahead of the market leader but behind the smaller challenger. That middle position is the actual finding, and it’s invisible until the follower counts get converted into rates on a shared time window.

The next question that ranking raises is what Competitor B is doing differently, which is where growth rate stops being a scoreboard and starts being a research prompt: more frequent posting, a format mix that leans harder into Reels, a recent collaboration, or a giveaway worth checking against their engagement rate before assuming it’s organic.

What Counts as Good Growth for Your Size

Once you have a rate, the next question is whether it’s actually competitive. Growth rate benchmarks vary a lot by account size, so the same monthly percentage means something different at 2,000 followers than it does at 200,000. Virallized’s 2026 growth rate guide lays out rough monthly ranges by account size: under 1,000 followers, 5 to 15 percent a month is achievable with consistent posting. Between 1,000 and 10,000, 3 to 8 percent a month is a healthy target. Between 10,000 and 100,000, 1 to 4 percent a month is realistic for most accounts. Above 100,000, 0.5 to 2 percent a month is typical without paid promotion (Virallized, 2026 Instagram growth rate benchmarks).

Growth has also been slowing across the board. Socialinsider’s analysis of over 447,000 active brand pages through 2025 found annual audience growth rate falling year over year at every size tier:

Source: Socialinsider, 2026 Instagram organic benchmarks. If your own rate is down year over year, that alone isn’t a red flag. The relevant question is whether it fell by more or less than the competitors you’re tracking in the same size band.

Engagement Rate: The Growth Number Bots Can’t Fake

Follower growth rate has one weakness as a competitive signal: it’s the easiest metric on Instagram to inflate artificially. A competitor who buys a batch of followers or runs a giveaway will show a growth spike that has nothing to do with building an audience that actually cares about their content. Engagement rate is harder to fake at scale, which is why it belongs next to growth rate in any competitor comparison, not instead of it.

The bar to compare against has been dropping. Socialinsider puts the average Instagram engagement rate across all post formats at 0.48 percent in 2026, down roughly 24 percent year over year (Socialinsider, 2026 Instagram organic benchmarks). If a competitor’s follower count is climbing while their engagement rate is flat or falling relative to that kind of baseline, the growth is coming from somewhere other than genuine audience interest, and it’s worth checking whether the metric you’re both chasing is a vanity number rather than a real one. For a fuller picture of what a healthy rate looks like at your size, our engagement rate benchmarks by follower tier break the average down further.

Signals Worth Tracking Alongside Growth Rate

Growth rate and engagement rate answer “is the audience real and is it expanding,” but they don’t explain why. Two other signals round out the picture and usually point at what’s driving a competitor’s numbers up or down.

Posting cadence and format mix. A competitor whose growth rate jumped this quarter is often just posting more, or posting more Reels relative to static images. That’s copyable in a way that a lucky viral moment isn’t. Note how many posts and Reels each competitor published per week over the same window you used for the growth rate calculation, so the two numbers line up.

Share of voice. Followers and engagement describe a single account in isolation. Share of voice, roughly the portion of total conversation, mentions, and tagged posts in your niche that belong to you versus each competitor, describes the category as a whole. A competitor can have a lower growth rate than you and still be gaining more of the category’s total attention if they’re getting tagged and mentioned more often by other accounts. It’s a slower signal to gather by hand than follower counts, which is usually the point where brands move this kind of tracking into a tool rather than a spreadsheet.

Building a Competitor Benchmarking Routine

A single snapshot, taken once, tells you almost nothing. The comparison only becomes useful as a recurring habit:

• Pick three to five competitors in your niche and close to your own size, not the biggest names in the category.
• Record follower count and engagement rate for yourself and each competitor on the same day every month.
• Calculate growth rate for every account using the same formula and the same time window.
• Flag any sudden spike and check it against posting history. A single viral post, a giveaway, or a paid follower campaign will show up as a jump that doesn’t repeat.
• Look at the trend over a full quarter before drawing a conclusion. One month of faster growth is noise. Three months in the same direction is a pattern.

Brands running this routine by hand tend to stop after a month or two, because pulling follower and engagement numbers for five accounts every week is tedious enough that it quietly gets skipped. That’s less a discipline problem than a tooling one, and it’s the reason our Instagram analytics for brands page exists: to keep this kind of comparison running without someone re-checking five profiles by hand every Monday.

Where Hexrate Fits

Once you know the formula and the benchmarks, the actual work is just keeping the numbers current for every account you’re tracking, not just your own. Hexrate’s competitor benchmarking tools pull follower growth rate and engagement rate for the accounts you choose, side by side with your own, so the comparison in this post is a dashboard you check rather than a spreadsheet you rebuild every month.