ROAS Calculator
Revenue Isn't the Same as Profit, but ROAS Is Still the First Checkpoint
Return on ad spend divides revenue generated by ad spend consumed, expressed as a multiple — a ROAS of 4 means every dollar spent returned four dollars in revenue. It's not profit, since it ignores product cost, fulfillment, and overhead, but it's the fastest gut-check on whether a campaign is directionally working before running a full margin analysis.
The Formula
ROAS = Revenue / Ad Spend
Revenue = ROAS × Ad Spend
Ad Spend = Revenue / ROAS
Revenue = ROAS × Ad Spend
Ad Spend = Revenue / ROAS
Where This Calculation Matters
- Comparing campaigns at a glance — ROAS gives a single normalized figure to rank campaigns of very different sizes.
- Setting a minimum viable ROAS — a business with 40% gross margin needs roughly 2.5x ROAS just to break even before overhead, making that figure a practical minimum bid target.
- Forecasting revenue from budget — given a planned ad spend and a historical ROAS, the find-revenue mode projects expected return before the budget is committed.
- Justifying scaling a campaign — a campaign holding steady ROAS as spend increases is a signal it can absorb additional budget without diminishing returns.
Worked Examples
| Revenue | Ad spend | ROAS |
|---|---|---|
| $500 | $1,000 | 0.5x (50%) |
| $1,000 | $1,000 | 1.0x (100%) |
| $2,000 | $1,000 | 2.0x (200%) |
| $4,000 | $1,000 | 4.0x (400%) |
| $6,000 | $1,000 | 6.0x (600%) |
A ROAS below 1.0x means the campaign generated less revenue than it cost to run, before accounting for any product margin.
How to Use This Calculator
- Choose which value to solve for: Find ROAS, Find Revenue, or Find Ad Spend.
- For Find ROAS, enter revenue and ad spend.
- For Find Revenue, enter ROAS (as a multiple, e.g. 4 for 4x) and ad spend.
- For Find Ad Spend, enter revenue and ROAS.
- Select Calculate to get the result.
Related Calculations
Break the return down further with the CPA Calculator, or plan the spend side with the Ad Spend Calculator.