Each unit of ad spend has three units of attributed revenue. That is not three units of profit.
ROAS calculator | Ad spend and attributed revenue
Calculate ROAS as a percentage and multiple from ad spend and attributed revenue, then continue to channel budget analysis. No file or signup required.
No CSVNo sign-upRuns in your browser
Your inputsChange a number. The answer updates immediately.
Defaults are an example: 1,000,000 spend and 3,000,000 revenue. Replace them with your totals.
ROAS300% · 3.00×
Ad spend as a share of revenue33.3%
Check attributed revenue per unit of ad spend. Use the same currency and reporting window.
This is a revenue ratio, not profit margin or revenue caused by advertising.
Formula
Analyze budget allocation with a channel CSV →ROAS = attributed revenue ÷ ad spend × 100Before using ROAS for a decision
Match reporting periods, currency and attribution rules, and check conversion maturity.
Review channel revenue, spend variation and margins. Current ROAS does not guarantee the return on extra spend.
Questions before using this number
ROAS excludes product costs, fees and returns. Use gross margin to review the break-even threshold too.
With positive spend, ROAS is 0%. Spend as a share of revenue is unavailable because its denominator is zero.