What is the average ROI of influencer marketing?

There isn't a reliable one. The widely quoted $5.78 per dollar comes from Influencer Marketing Hub's 2020 survey and measures earned media value, a modelled figure, not sales. Your ROI depends on margins, product, creators and how you track it. Your own past campaigns are a better benchmark than any industry average.

Why is influencer ROI hard to measure?

Most of the effect happens where tracking can't see it. People watch a video, forget the code and buy days later on another device, or in a store. Discount codes leak to coupon sites and pick up sales that would have happened anyway. Tracked numbers undercount some sales and overcount others.

What is a lift study for influencer marketing?

A lift study compares people who saw the campaign with a similar group who did not, then measures the difference in purchases. Ad platforms such as TikTok offer conversion lift studies for paid campaigns, which you can use when you run creator content as ads. It is the closest thing to proof of incremental sales.

Can an agency guarantee ROI on influencer marketing?

No honest one will. Results depend on the product, the price, the offer and the market, and a creator can't control whether people buy. Be wary of anyone promising a fixed return. Ask instead how they will measure results and what they will change if the numbers come in low.

Influencer marketing ROI: how to measure it honestly

Q: How do you calculate influencer marketing ROI?

ROI is (revenue attributed to the campaign minus total cost) divided by total cost. Total cost includes creator fees, product, shipping, agency or platform fees, ad spend and your team's time. Revenue should be gross profit if you can get it, because revenue alone flatters every channel with thin margins.

Influencer ROI is easy to calculate and hard to calculate truthfully. The formula fits on a sticky note. The trouble is the inputs: costs get left out, revenue gets credited twice, and famous statistics get quoted as if they were sales. This guide is about getting the inputs right. Set the measurement plan as part of your influencer marketing strategy, before the first creator posts.

How do you calculate influencer marketing ROI?

The formula:

ROI = (attributed gross profit minus total cost) ÷ total cost

Both halves need care.

Total cost is everything the campaign spent:

Creator fees and usage rights
Product sent, at cost, plus shipping and packaging
Agency, platform or marketplace fees
Ad spend behind creator content
Your team's hours, at a rough hourly rate

Attributed gross profit is revenue from the campaign minus the cost of the goods sold. Using revenue instead makes a 30% margin product look like a 100% margin one. If finance won't give you margins, report revenue but label it clearly as revenue-based ROI.

A worked example, with round numbers. You spend $10,000 all in. Tracked codes and links show $30,000 in revenue. Your gross margin is 60%, so gross profit is $18,000. ROI is ($18,000 minus $10,000) ÷ $10,000 = 80%. On revenue alone it would read as 200%. Same campaign, very different story.

For the cost side, see how to set an influencer marketing budget.

How can a business assess the ROI of influencer marketing?

There are three levels of evidence. Each is more honest and more work than the last.

Method	What it shows	What it misses	Effort
Codes and UTM links	Orders you can tie to a creator	Later buys, other devices, in-store; counts coupon-site leakage as influencer sales	Low
Before vs after	Change in sales, search and site traffic around the posts	Seasonality, promos, anything else that changed that week	Medium
Lift test	Extra sales caused by exposure, vs a control group	Organic posts are hard to hold out; needs volume	High

Level 1: codes and links. Give every creator a unique discount code and a UTM-tagged link. It's what most brands do: in Influencer Marketing Hub's 2026 benchmark report, promo codes were the most common tracking method at 45.9% of respondents. Treat the result as a floor with a leak. It misses people who buy later without the code. It also counts shoppers who found the code on a coupon site and would have bought anyway.

Level 2: before vs after. Look at total sales, branded search and direct site traffic for the weeks around the posts, against the same weeks before. If everything jumped the day the biggest creator posted, that's a signal. If you also ran a sale that week, it's noise.

Level 3: lift tests. Hold out a control group that doesn't see the campaign and compare. This is hard for organic posts, since you can't stop people seeing a creator's video. It's practical when you run creator content as paid ads. TikTok's Conversion Lift Study splits the audience into a test group that sees your ads and a control group that doesn't, then reports the extra conversions. Our view: if you spend real money boosting creator videos, run one. It answers the question every other method guesses at.

What do influencer marketing ROI statistics actually show?

Two numbers get quoted more than any others. Both are real. Neither means what most posts say it means.

"$5.78 for every $1 spent." This comes from Influencer Marketing Hub's 2020 benchmark report, a survey of about 4,000 marketers, brands and agencies. The report describes it as average earned media value per dollar in 2019. Earned media value is a modelled dollar figure for views and engagement, priced at assumed ad rates. It is not revenue and not profit, the data is self-reported, and it is now six years old.

"11 times the ROI of banner ads." This comes from a 2016 study by TapInfluence and Nielsen Catalina Solutions of one campaign for one brand, Silk, using blog posts. It measured in-store sales lift, which makes it more rigorous than most. It was also run with an influencer vendor, on one product, on blogs rather than TikTok or Instagram.

Use them as proof that influencer marketing can pay, not as a forecast for yours. Nobody can promise you a return, and anyone who does is selling. Your own last campaign, measured the same way twice, is a better benchmark than any industry average.

Why does tracked ROI undercount (and sometimes overcount)?

Undercounting:

People watch on their phone and buy on a laptop days later.
They search your brand name instead of clicking the link.
They buy in a store or on a marketplace you can't track.
The creator's content keeps getting views for months after the report closes.

Overcounting:

Codes leak to coupon sites and get used by people who were buying anyway.
Existing customers use a creator code for the discount.
Last-click attribution hands the creator credit for a sale your email closed.

Public engagement data can't fix any of this. Views and likes show attention, not purchases. Be suspicious of any dashboard that turns them into a sales number.

How to report influencer ROI to finance

Report three numbers, clearly labelled:

Tracked ROI. From codes and links, on gross profit. The conservative floor.
Cost per acquisition. Total cost ÷ tracked orders. Comparable to your other channels.
Supporting signals. Branded search, direct traffic and how creator content did when you ran it as ads.

Then say what the numbers can't show. Finance trusts a report that names its own limits. Pair this with the influencer marketing KPIs you set before launch, so the report measures what you said you'd measure.

How to improve influencer ROI

Rebook what worked. In most campaigns a few creators drive most tracked sales. Pay them again before testing new names.
Price on views, not followers. A cheaper creator with steady views beats a big account nobody watches.
Buy ad rights. The best organic video is usually your best ad. Paid usage costs extra and often pays for itself, but test it.
Fix the landing page. A creator can send clicks. They can't fix a slow checkout.

Most bad ROI starts with bad creator picks, before any measurement. If you want creators chosen on real view data and a measurement plan agreed up front, send us a brief. We'll tell you how we'll track it before we spend anything, and we won't promise a return.