ROAS Calculator

Common Questions

• What is ROAS?

  ROAS is return on ad spend: how much revenue each dollar of advertising brings back. Divide revenue by spend. Earn $4,000 from $1,000 in ads and your ROAS is 4:1, or 400%. It answers one question fast — is this campaign paying for itself? — without waiting on a full profit-and-loss report. Every major ad platform reports it, though each one counts conversions its own way. Read it per campaign and per channel, not just account-wide. One blended number hides the ads that are quietly losing you money.

• How do I calculate ROAS?

  Divide the revenue your ads produced by what you spent on them: ROAS = revenue ÷ ad spend. Spend $2,500, bring in $7,500, and your ROAS is 3:1, or 300% — three dollars back for every dollar out. Use the same date range on both numbers, and count only revenue the ads actually drove, not your whole store. The calculator above shows the answer three ways at once, because platforms and reports each pick a different one and it is easy to compare the wrong pair.

• What's a good ROAS?

  4:1 gets quoted as the target, but it is a rule of thumb, not a benchmark. It comes from margin math: if you keep 25 cents of every dollar, you need $4 back per $1 spent just to break even. Your real number depends on your margins. A business keeping 60% turns a profit at 1.7:1. A business keeping 15% is still underwater at 6:1. Put your margin into the break-even section above and compare. A good ROAS is any ROAS above your own break-even line. Past that, higher is better.

• ROAS vs ROI — what's the difference?

  ROAS measures revenue against ad spend only. ROI measures profit against everything it cost you. Take $10,000 in revenue from $2,500 in ads: ROAS is 4:1. But if those products cost $6,000 to make and ship, your profit is $1,500 on $2,500 of ads — an ROI of 60%. Same campaign, very different story. ROAS is the fast daily check on whether an ad is working. ROI is the slower monthly check on whether the business is making money. Steer campaigns with ROAS. Steer the business with ROI.

• What's a break-even ROAS?

  It is the point where your ads stop losing money and start paying for themselves. The formula is break-even ROAS = 1 ÷ profit margin. At a 25% margin, 1 ÷ 0.25 = 4, so you break even at 4:1. At a 50% margin you break even at 2:1. Below your line, every extra dollar of ad spend costs you money. Above it, the ads fund themselves. Use gross margin — what is left after product and fulfillment costs, before rent and payroll. Enter it above and the calculator draws the line for you.

• How do I improve my ROAS?

  Two levers: pay less per sale, or make more per sale. On cost, cut the keywords, audiences, and placements with no sales in the last 30 days — most accounts have a handful eating real budget for nothing. On revenue, fix what happens after the click. Taking conversion rate from 1% to 2% doubles your ROAS without touching the ads. Then lift average order value with a bundle or a second item at checkout. And check your margin before you blame the ads. Sometimes a 4:1 campaign is fine and the pricing is the problem.