Free tool · Ads
ROAS calculator
See your return on ad spend, the break-even ROAS your margins need, and whether your ads actually made a profit.
What you keep from each sale after product or delivery costs, before ads.
Runs entirely in your browser. Nothing you type is sent to us or stored.
How to use the ROAS Calculator
How to read your results
- ROAS = revenue ÷ ad spend.
- Break-even ROAS = 1 ÷ profit margin. Below it, every sale from ads loses money.
- Profit after ad cost = revenue × margin − ad spend.
If your ROAS is below break-even, don't just raise the budget. Fix the offer, the targeting or the landing page first, or move money to the channel that works. Not sure which platform suits you? Read Google Ads vs Meta Ads. Service business paying per lead? Our marketing budget calculator works out a safe cost per lead.
FAQ
Common questions
What is ROAS?
Return on ad spend: the revenue your ads brought in divided by what you spent on them. $4,000 in sales from $1,000 of ads is a ROAS of 4, often written 4:1 or 400%.
What is break-even ROAS?
The ROAS at which your ads pay for themselves and no more. It is 1 divided by your profit margin: with a 40% margin you need a ROAS of 2.5 just to break even.
What is a good ROAS?
There is no universal number. A good ROAS is one comfortably above your break-even ROAS, so the ads make profit after product costs. Low-margin products need a much higher ROAS than high-margin services.
Should I use revenue or profit in ROAS?
ROAS uses revenue. That is why you also need your margin: this calculator turns revenue into profit so you can see whether the ads actually made money.
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