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Engagement rate calculator
Three numbers in, one honest percentage out. Work out your Instagram or TikTok engagement rate the way brands do it — likes plus comments against followers — and see where that figure sits against the usual benchmark bands.
Calculate your engagement rate
Enter the three numbers from a single post. Nothing is sent anywhere, nothing is stored, and the arithmetic happens in this tab.
The formula: (likes + comments) ÷ followers × 100
What an engagement rate calculator is really measuring
Engagement rate is the one number in social media that survives contact with a media buyer. Follower counts can be bought, view counts swing wildly with the algorithm, and reach is invisible from outside the account. What a brand can check in thirty seconds is how many people bothered to react to a post relative to how many people follow you — and that ratio is what an engagement rate calculator produces.
The version on this page uses the definition that turns up most often in briefs and rate cards: likes plus comments, divided by follower count, times one hundred. It is not the only formula in circulation. Some tools divide by reach or impressions instead, which gives a higher and arguably more accurate number, but reach is only visible to whoever owns the account. Dividing by followers is the version anybody can calculate about anybody, which is exactly why it became the standard.
Read the output as a diagnostic rather than a grade. A three per cent Instagram engagement rate on a 40,000-follower account and a three per cent rate on a 400-follower account describe very different businesses, and the same percentage can mean a healthy niche audience in one category and a stalled account in another. The figure tells you the ratio; you still have to supply the context.
How to use the engagement rate calculator
Three fields, one button, under a minute — and nothing to sign up for.
Take your follower count
Use the number on your profile, written out in full. Typing 12000 rather than 12k matters: the calculator reads digits, and rounding a five-figure account down to the nearest thousand visibly shifts the result.
Open one post and read the likes
Pick a normal post, not your best one. If a single video went unusually far, it will inflate the percentage and give you a number you cannot repeat in front of a brand.
Add the comment count
Comments belong in the total because they cost the viewer more effort than a like. Some people strip out replies from the account owner; for a quick reading it rarely changes the band.
Repeat across several posts
Run your last five to ten posts through and take the average. One reading is a snapshot; a run of readings is the figure you can actually put in a media kit and defend.
Why this calculator works the way it does
A transparent formula, an honest benchmark, and nothing collected from you.
The arithmetic never leaves your browser
No API call, no account connection, no database row. The three numbers you type are used in this tab and forgotten when you close it.
The formula is printed on the page
You can see exactly what is being divided by what. A calculator that hides its method is asking you to trust an output you cannot check.
Benchmarks framed as guidance
The four bands are widely-quoted industry rules of thumb, and we say so. They are useful orientation, not a measurement of your market.
Works for Instagram and TikTok alike
The maths is platform-agnostic. Use it for an Instagram engagement rate, a TikTok engagement rate, or to benchmark a creator someone has asked you to assess.
What actually moves an engagement rate
The single biggest lever is the tightness of your topic. An account about one narrow thing — cast-iron cooking, marathon pacing, a specific console — collects followers who genuinely want that thing, and they react. An account that posts a bit of everything collects followers who were interested once, and most of them scroll past. This is why niche accounts with modest followings routinely post engagement rates that large general accounts cannot touch.
Size works against you almost mechanically. As a following grows, a smaller share of it sees any given post, and the denominator in the formula keeps climbing whether or not those people are still watching. That is normal, it happens to everybody, and it is the reason brands compare accounts within a size tier instead of against one absolute threshold. A one-point-five per cent rate on a six-figure account is not the same problem as one-point-five per cent on two thousand followers.
Comments deserve deliberate attention, because they are the half of the numerator most people ignore. Ending a post with an actual question, replying properly to the first handful of comments, and posting things people have an opinion about will move the number more reliably than any posting-time trick. Buying engagement, by contrast, tends to make this calculation look worse over time — an inflated follower count sits in the denominator on every post you publish afterwards.
Reading the result honestly
The bands on this page are general orientation drawn from the rules of thumb that circulate in influencer marketing. They are not something we measured, they vary by platform and category, and no brand is obliged to agree with them. If your own collaborations have consistently landed differently, trust your history over a benchmark table.
Nothing you type is transmitted or saved. The calculation runs in your browser, there is no analytics event carrying your numbers, and refreshing the page clears them. That also means we never see your inputs — there is no lead form behind the button and no follow-up email.
Frequently asked questions
The questions people send us most often about this tool, answered plainly.
As a general rule of thumb, roughly 1% to 3.5% is ordinary, 3.5% to 6% is strong, and above 6% is unusual. Those bands are widely quoted across influencer marketing rather than measured by us, and they shift with account size and category — a large account is expected to sit lower than a small one.
TikTok rates calculated against followers tend to read higher than Instagram, because the feed pushes videos to people who do not follow you and those viewers still like and comment. The same bands work as orientation, but compare TikTok accounts to other TikTok accounts rather than across platforms.
Likes plus comments, divided by follower count, multiplied by one hundred. It is the definition most brand briefs use, because it can be calculated about any public account without access to that account’s analytics.
Engagement rate by reach is a more accurate description of how a specific post performed, and it is worth tracking privately. It is not comparable between accounts, though, because only the account owner can see reach — which is why the follower-based version is the one used in negotiations.
Not in this formula. Saves and shares are meaningful signals and worth watching in your own analytics, but they are invisible from outside the account, so the industry-standard calculation leaves them out.
Because the follower count is the denominator. Every new follower increases it whether or not they watch your posts, so a growing account usually shows a slowly declining rate even while the raw number of likes goes up. Compare yourself to accounts of a similar size.
Five to ten recent posts gives a figure that is stable enough to use. A single post can be distorted by one video travelling unusually far, and a media kit built on that number is hard to defend when the next campaign underperforms it.
No. The whole calculation happens in your browser with no network request and no storage. Close the tab and the numbers are gone, so we never see them.
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