Google Ads ROAS & Campaign Profit Calculator: Maximize ROI in 2026
Calculate your Google Ads Return on Ad Spend (ROAS), campaign profit, and break-even ROAS to evaluate paid search performance.
How Google Ads ROAS & Profit Are Calculated
ROAS measures gross revenue returned for every dollar spent on ads. Campaign profit accounts for both ad spend and product/service costs to reveal true profitability.
Break-even ROAS tells you the minimum ROAS required to cover your cost of goods — any ROAS above this threshold generates profit. For example, a 40% gross margin requires a minimum ROAS of 2.5× to break even.
How to Use the Google Ads ROAS Calculator
Enter Ad Spend
The total amount spent on Google Ads during the period (check your Google Ads billing summary).
Enter Revenue from Ads
Total revenue attributed to your Google Ads campaigns via conversion tracking in Google Ads or Google Analytics 4.
Enter Cost of Goods Sold
The direct cost to produce or deliver the products/services sold, used to calculate gross profit.
Add any additional costs
Agency fees, landing page costs, or other campaign-specific overhead beyond the ad spend itself.
Review ROAS, profit, and break-even
Compare your actual ROAS against the break-even ROAS to see if the campaign is profitable.
Real-World Scenario Example
"An e-commerce store spends $5,000/month on Google Ads, generates $22,000 in revenue, and has a 55% gross margin (COGS = $9,900)."
Inputs
Result
ROAS = 4.4×, Gross Profit = $12,100, Campaign Profit = $7,100, Net Margin = 32.3%, Break-Even ROAS = 1.82×. The campaign is profitable above break-even.
Important Disclaimer
ROAS and profit calculations are based on reported conversion data from Google Ads. Attribution discrepancies between Google Ads, GA4, and your CRM are common. Actual profitability may vary based on returns, refunds, and untracked sales channels.
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