Google Ads ROAS Calculator
Plan Google Ads budgets, check break-even ROAS, and see whether campaign revenue leaves room for profit.
Campaign inputs
Campaign results
Add spend and revenue to calculate.
Based on gross profit margin.
Requires conversions.
Revenue × margin − ad spend.
Use this as a planning benchmark, not a forecast.
How to use the Google Ads ROAS Calculator
Enter the media spend and conversion value for the date range, campaign, or ad group you want to review. Use the same attribution window for both numbers.
Add conversions to see your cost per conversion. Enter gross margin before advertising, not net margin, to calculate the revenue multiple that only covers media spend.
Compare current ROAS with break-even ROAS. If the current number is lower, the campaign is unlikely to cover its media cost before other business costs are considered.
What is ROAS?
Return on ad spend, or ROAS, is revenue divided by ad spend. If you spend $100 and attribute $400 in revenue, the campaign has a 4x ROAS.
ROAS is useful for buying decisions, but it is not the same as profit. Product margin, returns, agency fees, and fulfilment costs all affect whether a campaign is financially sustainable.
How to calculate break-even ROAS
Break-even ROAS is 100 ÷ gross margin percentage. A 50% margin needs at least 2x ROAS to recover the ad spend. A 25% margin needs 4x.
Frequently Asked Questions
What is ROAS in Google Ads?
ROAS shows how much revenue is attributed to each unit of advertising spend.
What is a good Google Ads ROAS?
The right target is higher than your break-even point and depends on your costs and growth goals.
How do I calculate break-even ROAS?
Divide 100 by your gross profit margin percentage.
Does ROAS include agency fees?
Usually not. Include total operating costs separately when assessing profitability.
What is the difference between ROAS and ROI?
ROAS compares revenue with ad spend. ROI compares profit with total investment.