Free tools
Influencer marketing calculators
Small, exact tools for the arithmetic that comes up when you are choosing and paying creators. No signup and no email wall. Each one runs entirely in your browser, so nothing you type is sent anywhere or stored, and the one that uses data uses only data we measured ourselves and publish with its sample size.
Influencer rate calculator
real asks and offers by follower tier and deliverable
Type a follower count and a deliverable and get the range creators that size actually asked, the range brands offered them, and what that format is quoted at. Every figure is a real negotiation on Cheerful with its sample size printed next to it, and thin cells say so.
Open the calculatorInstagram engagement rate calculator
(likes + comments) ÷ followers × 100
Rate by followers, which is the version you can compute for a creator you have never worked with, because every input is public. The result is placed against the engagement bands we measured on real Instagram accounts.
Open the calculatorTikTok engagement rate calculator
(likes + comments + shares) ÷ views × 100
Rate by views, because TikTok decides distribution and follower count barely enters into it. Also gives the like-to-view ratio, the follower-based rate if you need it, and a median-views check.
Open the calculatorYouTube engagement rate calculator
(likes + comments) ÷ views × 100
Rate by views, with the subscriber-based version alongside. Covers why Shorts and long-form should never share a column, and what YouTube stopped showing publicly.
Open the calculatorTwo rules these follow
- The formula is on the page
- Every calculator shows its arithmetic with your numbers in it, not just the answer. Engagement rate has at least two definitions in common use on each platform and they produce different numbers from the same post, so a tool that hands back a percentage without saying which one it computed has told you almost nothing. If you disagree with the formula, you can see that you disagree with it.
- No benchmark table we cannot source
- Most calculators in this category print a “good engagement rate is X to Y” band next to your result. We print one only where we measured it ourselves. The published tables disagree with each other by multiples, most do not state whether they divided by followers or by reach, and most carry no date. So the Instagram calculator places your result against our own measured bands, and the TikTok and YouTube calculators, where we have not measured, say so and explain how to build a benchmark from your own shortlist instead.
What these will not do
The engagement calculators compute one post at a time from numbers you type. They do not look anything up, so they cannot fetch a creator's posts for you, and they cannot see saves, shares on Instagram, reach, dislikes on YouTube, or watch time anywhere, because those are private to the account owner. A public engagement rate is a floor, not a measurement of everything that happened.
The rate calculator will not tell you what a creator is worth, either. It shows what creators of that size actually asked and what brands offered them, from real negotiations we measured, with the sample size next to every range and a warning on the thin ones. It never combines two ranges into a number nobody quoted, and it does not take engagement as an input, because in the data engagement did not predict the ask.
The research behind them
Two of these tools read from original measurements we publish in full, with the sample sizes, the exclusions and the figures we declined to publish. Both are free to reuse with a link.
- Influencer rates 2026: what creators ask and what brands actually pay, by tier and format.
- Instagram engagement benchmarks: median and quartile engagement by follower band, measured.
When the hand tools stop scaling
A calculator is the right shape for one creator you are curious about. It stops being the right shape at roughly the point where you are doing the same arithmetic across a shortlist of forty, over a dozen posts each, and pasting the results into a spreadsheet that is stale by the time you finish it.
That is the job Cheerful's creator discovery does as part of the search, and post tracking keeps doing after the campaign is live. The tools on this page stay free and stay here either way.
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