Free Ecommerce Profit Calculator: Margin, ROI and Break-Even
Sales growth is not the same as profit growth. This ecommerce profit calculator puts product cost, fulfillment, payment fees, advertising and fixed costs into one transparent model so you can test an offer before scaling it.
Break-even price at these variable costs: $40.52. This is a scenario model; replace assumptions with your actual fees, refunds and tax treatment.
How this free tool works
Estimate ecommerce revenue, variable costs, net profit, profit margin, ROI and break-even orders from your own product and marketing inputs. Free with editable assumptions. The result is designed to be transparent: you can see the inputs, the formula and the assumptions instead of receiving a black-box score.
Revenue = selling price × orders. Variable profit per order = selling price − product cost − fulfillment − payment fees − ad spend − other variable costs. Net profit = variable profit × orders − fixed costs. Profit margin = net profit ÷ revenue × 100.
Best for
- Shopify and DTC operators checking product-level economics
- Founders testing price, cost and acquisition scenarios
- Marketers translating ROAS into actual contribution profit
Frequently asked questions
What costs should an ecommerce profit calculator include?+
At minimum include product cost, fulfillment or shipping, payment and platform fees, advertising, refunds or other variable costs, and fixed costs when you want a business-level view.
What is the difference between gross margin and net profit margin?+
Gross margin subtracts direct product costs from revenue. Net profit margin also reflects operating and other expenses. Keep the definition consistent when comparing periods.
Why can a high ROAS still produce a loss?+
ROAS compares attributed revenue with ad spend only. Product cost, shipping, payment fees, refunds and fixed costs can consume the contribution left after advertising.
References and methodology
We use primary documentation where available and treat calculators as planning aids, not guarantees. Check the linked source when a platform changes its rules.
- Shopify: What is a good profit margin?
Explains gross, operating and net margin and why revenue alone is not profitability.
- Shopify Help Center: Product media and store requirements
A first-party Shopify reference; this calculator leaves platform and payment fee assumptions editable because they vary by plan and market.
- Google Ads: About return on ad spend
Official context for connecting advertising spend and attributed revenue.
Turn this answer into a repeatable growth workflow.
Use the free result as your starting point, then move the next campaign, creative or growth decision into GrowthGPT when the work becomes repetitive.