ROAS calculator
ROAS (return on ad spend) is revenue divided by ad spend. A ROAS of 4 means every $1 of ads brought back $4 of revenue. Meta shows it as a multiple and Google as a percentage. This calculator shows both.
ROAS is not profit. It counts revenue before the cost of the product, shipping, fees and overhead. To know the ROAS you need to make money, use the break-even ROAS calculator with your margin.
- ROAS
- 4.0x
- Revenue per $1 of ad spend.
- ROAS as a percentage
- 400%
- How Google Ads shows it.
- Revenue after ad spend
- $15,000
- Not profit: product, shipping and fees still come out of it.
- Ad spend share of revenue
- 25%
- The share of each sale that paid for ads.
How it is calculated
- ROAS = revenue / ad spend
- ROAS as a percentage = ROAS x 100
- Revenue after ad spend = revenue - ad spend. This is not profit: product and other costs still come out of it.
Worked example
You spent $5,000 on ads last month and those ads brought in $20,000 of tracked revenue. ROAS = 20,000 / 5,000 = 4.0, or 400%. Revenue after ad spend is $15,000. Whether any of that is profit depends on what the $20,000 of orders cost to fulfill.
Definitions
- Meta: Purchase ROAS (return on ad spend)
- Google Ads Help: About Target ROAS bidding
- Google Ads Help: About return on investment (ROI)
FAQ
It depends on your margin. A store with a 70% gross margin makes money at a ROAS of 2. A store with a 25% margin loses money at a ROAS of 3. Compare your ROAS with your break-even ROAS, which is 1 divided by your gross margin; the break-even ROAS calculator does that in seconds. Averages vary by industry, price point and business model, so treat any single benchmark with care.
ROAS measures revenue against ad spend only. ROI measures profit against cost. Google Ads Help defines ROI as revenue minus cost of goods sold, divided by cost of goods sold. A campaign can have a high ROAS and a negative ROI when the product margin is thin or other costs are high.
Meta's Purchase ROAS metric is purchase conversion value divided by amount spent. The conversion value is what your pixel, Conversions API or app events send with each purchase. Meta notes that some events may be modeled when data is partial, and that the metric may not be calculated in some iOS 14+ cases.
Google Ads uses conversion value divided by cost, shown as a percentage. Its Target ROAS help page gives $5 in sales for $1 of ad spend as a 500% target ROAS. A ROAS of 4 in Meta's format is 400% in Google's.
Attribution. Meta and Google count the conversions their ads touched inside an attribution window, so each platform's ROAS uses its own conversion value, not your total revenue. Two platforms can both claim the same order. For a blended view, divide total revenue by total ad spend across every channel.
Put the numbers to work in bulk
Adsap creates campaigns, ad sets and ads for Meta and Google Ads from a spreadsheet-style Ad Sheet or from an AI copilot in Claude, ChatGPT or Perplexity. Everything is created paused, with a preview before every change and an audit log on every action.
Free plan, no card required. Early Access at $29/month plus tax includes every tool. Cancel anytime.