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E-commerce profit calculator

Compute the profit per sale after product cost, marketplace fees and shipping.

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The E-commerce profit calculator turns Selling price, Product cost, Marketplace fee (%), Shipping cost into Profit per sale, Profit margin, instantly and for free. For instance, with Selling price = $50.00, Product cost = $20.00, Marketplace fee (%) = 15 and Shipping cost = $5.00 it returns Profit per sale = $17.50 and Profit margin = 35%.

How to use it

  1. Enter your values: Selling price, Product cost, Marketplace fee (%), Shipping cost.
  2. Read the result instantly: Profit per sale, Profit margin.

Frequently asked questions

How does the E-commerce profit calculator work?

It takes Selling price, Product cost, Marketplace fee (%) and Shipping cost and derives Profit per sale and Profit margin from them. The calculation is live as you type, so the result updates on every change.

Which values does the calculator ask for?

4 values: Selling price ($), Product cost ($), Marketplace fee (%) and Shipping cost ($). Nothing else is required — no account, no file upload.

What does a typical calculation look like?

With Selling price = $50.00, Product cost = $20.00, Marketplace fee (%) = 15 and Shipping cost = $5.00, the calculator returns Profit per sale = $17.50 and Profit margin = 35%. Those figures come from running this exact tool, so you can reproduce them by entering the same values.

How much does the result change with different inputs?

It moves a lot. Using Selling price = $100.00, Product cost = $40.00, Marketplace fee (%) = 30 and Shipping cost = $10.00 instead, Profit per sale goes from $17.50 to $20.00 — which is why it is worth testing a few scenarios rather than trusting a single figure.

What does it give for smaller values?

Scaled down to Selling price = $25.00, Product cost = $10.00, Marketplace fee (%) = 8 and Shipping cost = $3.00, Profit per sale comes out at $10.00. The relationship is worth checking at both ends before you rely on a single result.

When would I actually use this?

Setting a price that survives contact with reality: covering costs, hitting a target margin, and checking what the marketplace and payment fees leave behind.

What is the most common mistake?

Confusing margin with markup. A 50% markup is a 33% margin, and pricing as if they were the same undercharges by a third on every unit sold.

What is the difference between the E-commerce profit calculator and the Gross profit calculator?

This one returns Profit per sale and Profit margin; the Gross profit calculator returns Gross profit and Gross margin. That is the whole difference — open the one whose figure you need.

Is there a tool for the next step?

Lemonade stand profit calculator is the closest one after this: Run the numbers on a lemonade stand — a first, friendly lesson in unit economics. From cups sold, price, the cost of ingredients per cup and your fixed costs, it works out revenue, total cost, profit, the margin and how many cups you must sell just to break even.

What else is worth having open alongside it?

Net profit margin calculator and Profit per hour calculator — they come up in the same task often enough to be worth a second tab.

Further reading

All guides →
ExplainerWhat an Ecommerce Order Actually Earns YouBetween the price on the product page and the money in the bank sit seven deductions, one of which is charged per order rather than per euro. Walk one order down the ladder, then compute the return rate at which the whole thing goes negative.ExplainerHow Etsy Fees Work: The 6.5 Percent Is About a Third of the BillThe famous transaction fee is one of five layers. On a $40 item with $6 shipping, Etsy's order fees come to $4.62 — and $11.52 if the sale came through Offsite Ads.ComparisonStripe vs PayPal Fees: What Each One Actually TakesOn a $100 domestic card sale the gap is $0.78. On the same sale from abroad with a currency conversion it is $2.78. The headline rate is the part that matters least.ExplainerHow eBay Fees Work: The Percentage Is Not on the Price You SeteBay charges its final value fee on the item plus the postage the buyer paid. A 13.6 percent rate on a $100 item with $10 shipping costs $15.36 — 15.4 percent of the price you actually set.ExplainerHow Amazon FBA Fees Work: Every Layer on a $25 SaleA $25 unit does not cost 15 percent to sell. Referral, fulfilment, fuel surcharge, storage and returns stack to $8.14 — 32.6 percent of the price — before you have paid for the product.ExplainerReturn Rate: The Number That Decides Whether Your Ecommerce WorksA returned order is not a cancelled sale, it is a sale that cost you money. Here is the return rate at which returns eat the entire contribution of the orders that stayed sold, for three product profiles and five margin levels — plus what bracketing does to your order count.