ROAS Calculator
Calculate return on ad spend, revenue per advertising dollar and break-even ROAS.
Enter your values and press Calculate.
Tip: country presets are starting points only. Replace rates and prices with your actual figures whenever possible.
How this calculator works
ROAS divides advertising-attributed revenue by ad spend. A simplified break-even ROAS is calculated as one divided by gross margin expressed as a decimal.
Formula
$10,000 attributed revenue from $2,500 spend equals 4.0× ROAS. At a 40% gross margin, simplified break-even ROAS is 2.5×.
Getting a more accurate result
- Use consistently attributed revenue.
- Use contribution margin rather than gross margin when variable fulfillment costs matter.
- Do not treat ROAS as profit; it does not automatically include all business costs.
Understanding your result
The result is intended for comparison and planning. Real-world costs can differ because of local taxes, fees, tariffs, financing, usage patterns, equipment efficiency, rounding and other conditions. For important decisions, verify the inputs against your bill, contract, lender, employer or other authoritative source.
Frequently asked questions
Is higher ROAS always better?
Not necessarily. Scale, incrementality, customer lifetime value and margins also matter.
What does 4x ROAS mean?
It means $4 of attributed revenue for each $1 of ad spend.
Is ROAS the same as ROI?
No. ROI typically considers profit relative to investment, while ROAS focuses on ad-attributed revenue relative to ad spend.
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Updated for CostMeter V1.2 • September 2026