Ecommerce Profit Calculator
Whole-store profit across a month of trading.
Monthly net profit
$3,300
8.3% net margin
5-15% net margin is typical for an established store.
How the Ecommerce Profit Calculator works
A store's profit is rarely where its owner expects, because the costs arrive from a dozen directions and only revenue arrives from one. This totals every outflow a typical online store carries and shows what share of turnover actually survives.
Not financial advice. Marketplace fees change, and they vary by country, plan and seller status. Every rate here is an editable default, not a quoted price — check the platform's current fee schedule before you price a product against it. This is not tax or business advice.
Frequently asked questions
What is a typical ecommerce profit margin?
Net margins of 5-15% are common for established stores. Below 5% is fragile. Above 20% usually means either strong brand pricing power or unusually cheap customer acquisition, and both are worth understanding before assuming they persist.
What is the biggest hidden cost in ecommerce?
Customer acquisition, by a wide margin. Paid advertising is visible but easy to under-attribute; the cost of discounting to convert, of returns, and of the software stack that supports it all tends to be underestimated together.
Why is my store busy but not profitable?
Usually acquisition cost approaching or exceeding contribution margin. High revenue with thin margin means you are buying sales at close to what they are worth. The fix is pricing, product mix or cheaper acquisition — not more volume.
How often should I recalculate store profitability?
Monthly at minimum, and immediately after any fee change, supplier price rise or shift in ad costs. Ecommerce economics move faster than most owners re-check them, and margin erodes quietly.