Ecommerce Profit Calculator
A real per-order model: units per order, number of orders, payment percentages, fixed per-order fees, shipping and ad spend, producing the contribution waterfall and the decision floors that come with it.
Decimals allowed (weight, hours)
Whole numbers: this counts orders
Add fees and real selling costs
Payment or marketplace percentage
Charged once per order, however many units it contains
Per-order cost waterfall (entered costs only)
Decision numbers
"Contribution profit" here means revenue minus product cost minus the costs you entered above, and nothing else. It is not net profit: returns, packaging, tax, wages, rent and overhead are not included unless you typed them in.
Show the math
Internal math keeps full precision; only displayed amounts are rounded, half-up, at the currency's decimal places.
Per-order truth beats per-month hope
Monthly dashboards hide per-order losses inside averages: one profitable SKU can subsidize three that lose money on every sale, and the blended number stays green while the mix quietly worsens. Running each product through this per-order model, with its own fee rates, shipping reality and acquisition cost, shows which orders are worth winning. The currency selector covers non-USD stores, the summary copies with every assumption stated, and nothing you type leaves the browser: your unit economics are yours.
Ecommerce profit FAQ
What makes this an ecommerce calculator rather than a margin widget?
The order model. Ecommerce economics happen per order: a payment fee of 2.9% + $0.30 is charged per transaction, shipping is paid per parcel, and ad spend is judged per order won. This calculator separates units per order from number of orders, charges fixed fees once per order, and produces the per-order waterfall those costs actually follow, which a single quantity field cannot represent.
What is a typical fee load for an online order?
Stacked, more than most sellers expect: payment processing around 2.9% + $0.30, marketplace commissions from 6% to 15% where applicable, then shipping you subsidize and returns you absorb. On a $50 order, payment plus a 10% platform fee alone take about $6.60 before shipping. Enter your real rates above; the waterfall shows exactly where each part of the price goes.
How should I count advertising cost per order?
Total ad spend divided by orders attributed to it, for the same period. If you spent $500 and won 40 orders, acquisition cost is $12.50 per order. Enter that above and two decision numbers appear: the maximum you could pay per order before losing money, and the break-even ROAS your campaigns must clear. If blended CAC drifts above the max, growth is buying losses.
What costs does this calculator deliberately leave out?
Returns and refunds, packaging materials, storage, tax, and your fixed monthly costs, unless you fold them into a field yourself. The result is labeled contribution profit after entered costs for exactly that reason. It is the honest per-order layer: what each additional order adds before overhead, which is the number that should drive pricing and ad decisions.
More free tools: Marketplace Fees · Break-Even Calculator · Profit Margin Calculator · Ad Metrics Calculator