Marketing & Advertising
ROAS Calculator
Measure return on advertising spend from campaign cost and attributed revenue. Apply gross margin and fulfillment costs, compare spend scenarios, inspect contribution after advertising, and export a professional PDF campaign report.
Return on ad spend-
Attributed gross profit-
Contribution after advertising-
Campaign contribution ROI-
Break-even attributed revenue-
Campaign economics
Contribution across advertising spend
Contribution after adsAssumes current revenue and fulfillment efficiency
| Ad spend | Attributed revenue | ROAS | Gross profit | Contribution |
|---|
Decision view
Attributed revenue to campaign contribution
Ad spend $0Fulfillment $0Revenue ROAS 0x
How to use ROAS Calculator
- Enter advertising spend and revenue attributed to the same campaign, channel, and measurement window.
- Add the gross-margin rate and campaign fulfillment costs so revenue ROAS can be reconciled to contribution.
- Compare revenue, attributed gross profit, ad spend, fulfillment, and remaining contribution in the decision view.
- Validate attribution and incrementality before treating the calculated contribution as causal campaign profit.
Calculator guide
Understanding ROAS Calculator
Return on ad spend compares attributed revenue with media cost. It is a useful campaign-efficiency ratio, but applying gross margin and fulfillment cost is necessary before interpreting whether the campaign created contribution profit.
Calculation method
How the calculation works
ROAS = attributed revenue / advertising spend. Divide attributed revenue by ad spend for ROAS. Multiply revenue by gross margin, subtract fulfillment and ad spend, and calculate the revenue required for contribution to reach zero.
Metric hierarchy
ROAS is a revenue ratio, not a profit ratio
ROAS answers how much attributed revenue was recorded per advertising dollar. Profitability also depends on product margin and costs that occur after the click.
Attribution caution
Separate recorded revenue from incremental revenue
A platform can attribute a sale that would have happened without the ad. The calculator preserves the entered attribution result but cannot prove causality.
Worked situations
Practical examples
- Use ROAS Calculator for a quick everyday estimate.
- Change any input to compare another scenario.
Better inputs
Useful tips
- Use the same attribution window when comparing campaigns.
- Separate platform-reported revenue from audited order revenue.
- Compare contribution after ads, not ROAS alone, when margins differ.
Before relying on the result
Limitations and common mistakes
- Attribution does not prove the campaign caused every credited sale.
- Overhead, repeat purchases, refunds, tax, and cash timing may be excluded.
- ROAS is not directly comparable across different margin structures.
Reference
Key terms
- ROAS
- Attributed revenue divided by advertising spend.
- Attribution
- A rule for assigning conversion credit to marketing interactions.
- Gross margin
- Revenue remaining after direct product cost, expressed as a percentage.
- Contribution
- Modeled gross profit remaining after campaign-specific costs.
Important note
Calculated from the entered campaign values. Validate attribution, incrementality, lag, margin, and observed source data before making decisions.
Frequently asked questions
Is higher ROAS always better?
Not necessarily. Margin, scale, incrementality, refunds, and customer quality also matter.
What is break-even ROAS?
It is the revenue-to-spend ratio at which modeled gross profit covers advertising and other entered campaign costs.
Should revenue include tax?
Use a consistent net-revenue definition that matches your margin and accounting data.
Is ROAS the same as ROI?
No. ROAS compares revenue with ad spend, while ROI compares net return with the broader investment.