Profit Calculator
Free tool
Shopify • Wix • eCommerce
Profit Calculator
Calculate gross profit, net profit, break-even CPA, and break-even ROAS before you spend on ads.
Use it in 30 seconds
- Enter Selling price, Product cost, Shipping.
- Add your realistic Expected CPA (Meta/TikTok).
- Check Decision → if “REJECT”, fix economics first.
Calculator
Start here ✅
Default example is pre-filled: £9 cost + £4 shipping → sell £39.99 with £18 CPA.
Replace values with your real numbers.
Done ✅
What to do next
If your decision is REJECT, don’t waste time building ads. Improve economics first:
raise price, cut costs, add upsells/bundles, or improve conversion rate.
Results
—
Total cost (excl. ads)
£0.00
Gross profit (before ads)
£0.00
Gross margin: 0%
Net profit (after CPA)
£0.00
Net margin: 0%
Break-even CPA
£0.00
CPA for target profit
£0.00
Break-even ROAS
—
Action
—
Tip: Break-even CPA is your maximum CPA before you lose money.
How the calculator works
- Total cost = product cost + shipping + optional fees/VAT/returns.
- Gross profit = selling price − total cost.
- Net profit = gross profit − CPA.
- Break-even CPA = max CPA you can pay and still break even.
- Break-even ROAS = minimum ROAS required to avoid loss.
FAQ
What is a good profit margin for e-commerce?
Many brands aim for 60%+ gross margin and £10+ net profit per order.
What does Break-even CPA mean?
Break-even CPA is the maximum ad cost per purchase you can afford before net profit becomes zero.
What if my product says “REJECT”?
Improve unit economics: raise price, cut costs, add bundles/upsells, or improve conversion rate (CRO).
