CostE-commerce Profit Calculator
Estimate profit per order after product cost, shipping, platform fees and advertising cost.
Enter values and press Calculate.
Country rates are illustrative starting points, not live prices. Enter your actual rate. Calculations run in your browser.
See what each order contributes
Use revenue after discounts, excluding collected sales tax. Enter seller-paid shipping, product cost and average advertising spend per completed order. This simplified model applies percentage fees to selling price; check your platform's actual fee base.
Margin = profit ÷ price × 100
Worked example: a 50.00 order
Product 18.00, shipping 6.00, fees of 4% (2.00) and ads of 8.00 leave 16.00, or a 32% contribution margin. Before ads, the order contributes 24.00. That is the maximum ad cost at break-even, equivalent to a revenue-to-ad-spend ratio of 2.08.
Contribution profit is not net business profit
Returns, chargebacks, salaries, subscriptions, warehouse rent and taxes are excluded unless allocated to the other-cost field. A profitable order does not guarantee a profitable business. Break-even ROAS here assumes these per-order costs stay constant and excludes unallocated overhead.
How this calculator works
Revenue per order is reduced by product cost, fulfillment, percentage fees and advertising cost to estimate order-level profit.
How to use the result
Change one input at a time to compare scenarios. This helps you see which factor has the biggest effect on your total cost or savings.
Frequently asked questions
Does this include taxes?
No, unless you include them in one of the cost fields.
What is advertising cost per order?
It is your average ad spend required to generate one purchase.
Can I use this for dropshipping?
Yes. Enter your supplier cost, shipping, payment/platform fees and average advertising cost.