Product Profit Calculator
Net profit and margin after every cost.
Marketplace and payment fees per unit.
Results update as you type.
How it works
A product profit calculator shows the true profit you keep from selling a single unit once every direct cost has been deducted from the price. It subtracts the product cost, shipping and platform fees from the selling price to give net profit, then expresses that profit as a margin, which is profit divided by price. This is essential because the gap between price and product cost, which sellers often treat as profit, ignores the shipping and marketplace fees that quietly consume a large slice of every order. A product that looks profitable on paper can lose money once a fifteen percent platform fee and a few dollars of shipping are taken into account, and you would never see it from the price tag alone. By making each deduction explicit, this calculator lets you price with confidence, compare suppliers, and decide whether a product earns its place in your catalogue. Margin, rather than raw dollars, is the number to steer by, because it scales across products at very different price points and tells you how much cushion remains to absorb returns, discounts, advertising and slow periods. Amazon, Etsy, eBay and Shopify sellers, dropshippers and direct-to-consumer brands use a product profit calculator before listing an item, when negotiating with suppliers, and when setting the margins that keep the whole business sustainable. Run each product through it, keep only those that clear your target margin, and you build a catalogue that actually makes money rather than merely turning it over.
net profit = price − product cost − shipping − platform fees
The selling price is your gross revenue per unit. From it the formula subtracts the product cost, the shipping you pay per order, and the platform fees charged by the marketplace and payment processor, leaving net profit, the money you actually keep. Dividing that net profit by the selling price and multiplying by 100 gives the profit margin, a percentage that lets you compare profitability fairly across items with very different prices.
Source:Standard retail margin formula
We review all our tools from time to time to ensure accuracy.
Worked example
How to use this calculator
- 1
Enter your values
Enter selling price and product cost.
- 2
Adjust the options
Adjust shipping cost and platform fees if they apply — sensible defaults are already set.
- 3
Read your result
Net profit updates instantly as you type — no button to press.
Frequently asked questions
What is the difference between net profit and margin?
Net profit is a dollar figure, the amount left after subtracting product cost, shipping and fees from the selling price. Margin is that profit expressed as a percentage of the price, which makes it comparable across products at different prices. A five-dollar profit sounds identical on two items, but one might represent a healthy forty percent margin and the other a fragile five percent. Watching margin alongside raw profit keeps your pricing honest across a varied catalogue.
Should I include advertising in product profit?
If you want a complete picture, yes, though advertising is often tracked separately because it varies by campaign rather than per unit. You can fold an average advertising cost per sale into the platform fees field to see a fuller net profit, which matters most when ad spend is a large share of revenue. At minimum, keep advertising in mind when interpreting your margin, since a product that looks profitable can lose money once acquisition costs are added.
How do platform fees affect profit?
Marketplace and payment fees usually scale with the selling price, so they take a proportional bite out of every order and grow as your price rises. Platforms such as Amazon, Etsy and eBay commonly charge in the region of ten to fifteen percent, and payment processing adds a few percent more. Because the fee follows the price, raising your price does not protect your margin as much as expected, so always build the platform's cut into your pricing rather than treating it as an afterthought.
What counts as a healthy product margin?
It varies by category, but many sellers aim for a net margin of twenty to forty percent after every cost, giving enough cushion to absorb returns, refunds and advertising. Below ten percent a product is fragile, since a single price rise from your supplier or a wave of returns can wipe out the profit. High-volume commodity items can survive on thinner margins, while unique or branded products should command more, so judge your figure against the risk and marketing each product carries.
Does this calculator handle bulk or per-unit costs?
It is designed for per-unit economics, so enter the cost, shipping and fees associated with a single sale. If you buy inventory in bulk, divide the total purchase cost by the number of units to get the per-unit product cost before entering it. Likewise, use the shipping and fees that apply to one order. Working per unit keeps the margin meaningful and lets you compare products directly, which is exactly what you need when deciding what to stock and how to price it.