February 26, 2026
8 Min
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What is ROAS? How to Calculate Ad Revenue in E-Commerce and Service Sector? (2026 Guide)

What is ROAS? How to Calculate Ad Revenue in E-Commerce and Service Sector? (2026 Guide)

"Your turnover might be increasing, but if your ROAS is low, you are actually growing by losing money."

Don't Burn Your Money: How Much Do Your Ads Earn You?

The most common lie we hear in digital marketing is: "We ran ads, got lots of clicks, business is great!" But if the money entering the safe isn't increasing at the end of the day, those clicks are just ego satisfaction. This is where ROAS (Return on Ad Spend) comes in. This metric tells you the painful truth: "I spent 1 TL, how many TL did I earn in return?" As Nexentio, this is the only question we ask every month to our customers whose Google Ads and Meta ads we manage.

How to Calculate ROAS? (Elementary Math)

The formula is very simple: ROAS = (Revenue from Ad / Ad Spend) x 100 Example: You spent 10,000 TL on Google Ads. You made 50,000 TL turnover thanks to these ads. ROAS = (50,000 / 10,000) x 100 = %500 So you earned 1 to 5. Congratulations, you are printing money.

ROAS vs ROI: Those Who Don't Know the Difference Go Bankrupt

ROI (Return on Investment): All expenses such as rent, personnel, shipping, product cost are included. It is the company's general profitability. ROAS (Return on Ad Spend): Focuses only on the ad budget. Measures the performance of the ad. *Even if ROAS is high, if your profit margin is low, ROI can be negative. That's why we combine ad data with net profitability using CRM systems.*

What Should a Good ROAS Be?

This depends entirely on your profit margin. The table below shows average Target ROAS rates by sector:

SectorProfit MarginTarget ROAS (Minimum)Status
JewelryHigh (%50+)%250 (1:2.5)Ideal
ElectronicsLow (%10-15)%1000 (1:10)Mandatory
Service (Clinic/Lawyer)Very High (%80+)%200 (1:2)Sufficient
Clothing / FashionMedium (%30-40)%400 (1:4)Successful

Table Analysis: If you sell electronics (low profit margin), the ad must bring you at least 1 to 10 so you make money. But if you are a dental clinic, even 1 to 2 makes you rich.

3 Certain Ways to Increase ROAS

1. Optimize Landing Page: If the person clicking on the ad comes to a slow-loading or confusing site, they flee. Fast and conversion-oriented pages instantly increase ROAS by 30%. 2. Right Target Audience: Showing ads to "everyone" is throwing money in the trash. Target only those interested with Remarketing. 3. Negative Keywords: By blocking words like "Free", "Cheap", "Second Hand", only appear to customers who will spend money.

Conclusion: Data-Driven Growth

The ad panel is not a gambling table. You must account for every penny. As Nexentio, we offer campaigns managed by data like ROAS, ROI, and LTV, not emotions.
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