Social & contentFree
Influencer ROI Calculator
Estimates orders, ROI, ROAS and CAC for a sponsored post from the fee, the follower count and your margin. Shows a conservative, base and optimistic scenario and how many orders you need to break even.
- No sign-up
- Runs in your browser
Profile size
Reference from 11/2026: 20% of followers see the post and 1,5% of those click. If you have the profile's screenshots, use the real number.
Enter the fee, the followers, the average order value and the margin to see if the post pays for itself.
Formulas
- Orders = followers × reach% × clicks% × conversion%
- Result = orders × average order × margin% − cost of the post
- ROI = result ÷ cost · ROAS = revenue ÷ cost · CAC = cost ÷ orders
Tips
- Give the influencer an exclusive coupon. Without it you will never know how many orders came from them.
- Ask for screenshots of the reach of recent posts and stories before signing. Followers say nothing; reach does.
- Negotiate a package: a sequence of stories + 1 reel usually brings more clicks than a single post for the same fee.
- Compare the post's CAC with your ads' CAC. If the post brings pricier orders, the money works harder in paid traffic.
Reach and click ranges updated in 11/2026, based on market averages. Reach and conversion vary a lot from profile to profile and niche to niche. Treat the result as an estimate, not a promise.
How it works
How to tell if an influencer post will pay for itself
Followers don't buy. The people who buy are a small slice of those who saw the post, clicked and landed on the store. The math is a funnel: followers turn into reach, reach turns into clicks, clicks turn into orders. A 50k-follower profile with 20% reach shows the post to 10,000 people. If 1.5% click, that's 150 visits. At 1.5% conversion, that's 2.3 orders. That number is what pays the fee or doesn't, not the 50k.
Example: R$ 800 fee + R$ 100 in product sent. A 20k-follower profile, 25% see it = 5,000 people. 1.5% click = 75 visits. 2% buy = 1.5 orders of R$ 150 = R$ 225 in revenue. At 40% margin that leaves R$ 90, against R$ 900 in cost. ROI of minus 90% and a CAC of R$ 600 per order. It doesn't pay. With an exclusive coupon and 4% conversion it becomes 3 orders and R$ 180 in gross profit: still doesn't pay, but the CAC drops to R$ 300. Breaking even takes 15 orders: 750 visits at 2%, or 375 at 4%.
To measure it for real, give the influencer a coupon of their own and a UTM link (utm_source=influencer, utm_campaign=name). Count the orders with that coupon or that source for two weeks. Compare the CAC you got with the CAC of your paid ads: if the post brought cheaper orders, repeat it and scale it. Practical tip: before signing, ask for screenshots of the reach of the last 5 posts and stories and use the average in the reach field instead of the tier guess.
FAQ
Frequently asked questions
Is paying an influencer worth it for a small store?
It depends on the math, not on the size of the store. Take the fee and divide it by the profit on each order: that gives you how many orders you need to break even. A R$ 500 fee with R$ 60 of profit per order needs 9 orders. If the profile can't bring 9 orders, don't sign; if it brings 20, sign again.
How do I measure the return on a sponsored post?
Give the influencer an exclusive coupon and a UTM link for the bio and the stories. Then add up the orders with that coupon or that source over 7 to 14 days. Revenue from those orders divided by what you paid is the ROAS. Profit from those orders minus the fee, divided by the fee, is the ROI.
How much should I pay for an influencer post?
A common reference in Brazil is R$ 20 to R$ 60 per thousand followers for nano and micro profiles, and less per thousand for big ones. A 20k-follower profile usually asks R$ 400 to R$ 1,200 per post. But the number that matters is a different one: the fee divided by the orders it should bring. If that CAC is higher than what you pay on ads, it's expensive. For the creator's side of the math, use the How Much to Charge per Post tool.
Micro or macro influencer: which one brings more return?
Per real invested, micro usually wins. A 15k-follower profile with an engaged audience reaches 20% to 30% of its base and has a niche audience that converts better. A macro profile delivers volume, but reaches 5% to 10% of followers and charges a lot more per person reached. Compare the effective CPM and the CAC of both in the calculator before deciding.
What is a good ROI in influencer marketing?
Any ROI above zero means the post covered its own cost and still left something over. A 50% ROI means every R$ 100 invested came back as R$ 150 of gross profit. In e-commerce, posts that work land between 50% and 200% ROI, with ROAS between 3x and 5x. Below that, compare it with what your paid ads deliver.