Formula
ROAS = attributed ad revenue ÷ ad spend; it measures revenue, not profit.
How to use this calculator
- Enter the required values above.
- Check that inputs use the intended units or date format.
- Select Calculate to see the result.
- Change the inputs to compare another scenario.
Understanding the result
Calculate return on ad spend by comparing attributed revenue with advertising cost. The output is calculated using your inputs and the stated formula. Results depend on the selected measurement conventions and assumptions.
Limitations
This tool does not verify input data or automatically account for public holidays, daylight-saving rules or other factors not represented by the formula. Treat business metrics as estimates and keep definitions consistent.