You put money into Meta ads. Some money comes back as sales. ROAS is those two numbers next to each other: what came back, divided by what you spent.
Say you spent 10,000 on ads last week, and those ads brought in 40,000 of sales. Divide 40,000 by 10,000 and you get 4. That is a 4x ROAS, four rupees back for every one rupee you put in. If the same 10,000 had only returned 8,000, you would be at 0.8x, and the ads would be quietly costing you more than they bring.
The full name is Return On Ad Spend, and the sum never gets harder than this: sales from the ads, divided by what the ads cost you.
Do it on your own last seven days. Take your sales number, divide by your spend, and see where you land:
Here is where it bites people. ROAS counts sales, not profit. A clean 4x can still leave you poorer at the end of the month. If the product itself eats most of what the customer pays, then once you take out the cost of the goods, the shipping and the platform fees, those four rupees of sales can come down to almost nothing in your pocket. ROAS only tells you the ads made sales. Whether those sales made you money is a separate question, and it lives on the breakeven page.
One more thing worth knowing early. You will see two ROAS figures and they almost never agree. The one inside Ads Manager runs high, because Meta counts every sale it believes it had a hand in. The one you get by taking your total sales over your total spend, straight from your bank, is the honest one. When the two argue, believe the bank.
A high ROAS tells you the ads are working. Only your margin tells you that you actually kept anything.
Sources
- Standard advertising definition. This page explains a universal metric, not a Meta-specific figure, so there is no benchmark or platform number to source. Any example numbers are illustrative and labelled as made up.
Last checked 8th August 2026. Next check due 15th August 2026. Every number on this page has a source and a date.