Ad Profit Calculator

Ecommerce ad profit / real ROAS after product costs — not platform revenue ROAS alone. This calculator subtracts COGS and ad spend to show net profit and whether you are above or below break-even.

Business model
Revenue per sale, before ad costs
Number of sales from ads
Optional: shipping, payment fees, etc.

Ad profitability

The formula

Profit = (Sales × contribution per order) − ad spend

ROAS = (Sales × AOV) ÷ ad spend

Compare actual ROAS to your break-even ROAS. Above the floor with positive profit means real ROAS after COGS is working; below means you are funding sales with margin you do not have.

Frequently asked questions

  • What is real ROAS after COGS?

    Platform ROAS is revenue ÷ ad spend. Real ROAS for ecommerce profit compares that to your break-even after product costs (COGS), fees, and spend — so you know if ads make money, not just revenue.

  • Is this a real ROAS calculator for ecommerce?

    Yes. Enter sales, AOV, margin, and ad spend to see net profit and whether your actual ROAS is above or below break-even after product costs.

  • How is ad profit different from ROAS?

    ROAS is a revenue multiple. Ad profit is dollars left after contribution and ad spend. A campaign can show healthy platform ROAS and still lose money if margin is thin.