ROAS Calculator Advanced

ROAS Calculator Advanced tells you the exact return on ad spend you need to make a profit on a product — not just revenue. Most retailers set a ROAS target that looks healthy and still loses money, because the target was never measured against what the sale really costs. Shipping, payment fees, fulfilment, duties and returns all come out of the same margin, and none of them show up in a simple revenue ÷ spend figure. This calculator tracks your true cost per sale (COGS+) and turns it into the numbers you can actually bid on. WHAT YOU GET • Break-even ROAS — the point where you stop losing money • Target ROAS — the number that hits your profit goal • Profit per sale • Real margin • Max cost per sale (CAC) — your ceiling for winning a customer • COGS+ — your true cost per sale, itemised WHY IT'S USEFUL Bid with a number you can defend. Instead of guessing a target ROAS, you set the profit you want and get the exact figure to enter into your campaign. Spot the products that can't win. Some items have no margin left once returns and fees are counted. This shows you which, before you spend on them. Price and cost decisions get easier. Change your profit target, shipping or supplier cost and watch the required ROAS move in real time. Check any product in seconds. Scan the page you're on instead of rebuilding a spreadsheet every time. HOW TO USE IT 1. Open one of your product pages 2. Click the extension, then "Scan this page for a price" — it reads the price, VAT and shipping straight off the page 3. Enter your costs: product cost, shipping, payment fees, fulfilment, returns. They're remembered for next time 4. Click Calculate to get your break-even and target ROAS 5. Adjust your profit target to see how the required ROAS changes FREE, AND YOURS TO KEEP Track 5 products free — no account needed. Your costs and results are stored in your browser and nothing is sent to us unless you choose to link an account. Link a free GROW account for 100 saved products, CSV export, and two-way sync with the calculator inside the platform. Works in £, $ and €. Built by GROW (www.grow.online) — AI agents that run profitable Google Shopping campaigns end to end.