Dropshipping Profit Margin Calculator: Find Your True Net Profit After Fees and Ad Spend
Enter your selling price, supplier costs, platform fees, and advertising cost per sale. This free dropshipping profit calculator subtracts every real cost so you see your true net profit, profit margin, and the maximum you can spend on ads before you lose money.
Enter your selling price and costs to check your dropshipping profit margin
Net Profit ($)
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What you keep after supplier costs, fees, and ad spend
Profit Margin (%)
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Net profit as a share of total revenue
📦 Your Product Pricing and Real Costs
Customer Revenue
$
The price the customer pays for the product itself, before shipping.
$
What you charge the buyer for shipping. Use 0 if you offer free shipping.
Supplier Costs (COGS)
$
What you pay your supplier (AliExpress, CJ, agent) for one unit.
$
What the supplier charges to ship one unit to your customer.
Fees and Marketing
%
Standard Shopify Payments / Stripe rate is 2.9%.
$
Flat per-order processing fee, typically $0.30.
$
Your cost per acquisition: ad budget divided by sales it produced.
Max Ad Spend to Break Even
The absolute most you can pay for one sale (your maximum CPA) before this product starts losing money. Keep your real Facebook or TikTok cost per acquisition below this number.
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Visual Receipt: Where Your Money Goes
Start with the gross revenue the customer pays at the top, then watch each cost come out, line by line, to reach your real net profit per sale.
A retail model where you sell products without holding inventory. When a customer orders, your supplier ships the item directly to them, so your profit is the gap between your selling price and the total landed cost.
COGS (Cost of Goods Sold)
The direct cost to fulfill one order: the item price your supplier charges plus the supplier shipping cost to send it to the customer. It does not include ads or payment fees.
CPA (Cost Per Acquisition)
How much you spend on advertising to win one paying customer. Calculated as total ad spend divided by the number of sales those ads produced. In dropshipping this is usually the single largest cost per order.
ROAS (Return on Ad Spend)
Revenue earned for every dollar spent on ads, written as a ratio like 3x. A high ROAS looks great, but it can still lose money if your margins are thin, which is why net profit matters more.
Break-Even Point
The exact level where net profit is zero because total costs equal total revenue. Below it you lose money on every sale, above it you profit. Here it is expressed as your maximum allowable ad spend per sale.
Payment Gateway Fee
The charge a processor like Shopify Payments or Stripe takes for handling each card payment, normally a percentage of the total plus a flat per-transaction fee, such as 2.9 percent plus 0.30 dollars.
Total Revenue
The grand total the customer pays you, equal to the target selling price plus any shipping you charge. Your payment processor bases its percentage fee on this combined number.
Net Profit
The money you actually keep from a sale after supplier costs, payment processing fees, and ad spend are all subtracted from total revenue. This is the number that decides whether a product is worth selling.
Profit Margin
Your net profit expressed as a percentage of total revenue. It shows how much of every dollar the customer pays actually ends up as profit, and is the quickest read on a product's health.
Landed Cost
The full cost to get one unit into your customer's hands, combining the supplier item price and the supplier shipping. Pricing at two to three times the landed cost leaves room for ads and fees.
The Complete Guide to Dropshipping Profit Margins
A 29.99 dollar order looks like a healthy sale, but experienced dropshippers know that almost all of it disappears before it reaches your bank account. The supplier takes their cut for the item and shipping, the payment processor skims a percentage plus a flat fee, and the advertising that won the customer is usually the biggest cost of all. This guide explains the math behind the dropshipping profit calculator above, how to read the break-even ad spend figure, and what numbers actually make a product worth scaling.
How to Use This Dropshipping Profit Calculator
Work through the three panels left to right. In the Customer Revenue panel, enter your Target Selling Price and any Shipping Charged to Customer (use 0 for free shipping). In the Supplier Costs panel, enter the Item Cost from Supplier and the Supplier Shipping Cost, which together form your cost of goods. In the Fees and Marketing panel, enter your Platform or Payment Gateway Fee percentage, the Fixed Transaction Fee, and your Estimated Ad Spend per Sale, which is your cost per acquisition. Everything recalculates instantly as you type, with no submit button to press. The hero shows Net Profit and Profit Margin together, the break-even card reveals your maximum allowable ad spend, the visual receipt breaks down exactly where your money goes, and the status banner gives you a quick green, yellow, or red verdict.
The Dropshipping Profit Math, Step by Step
First the engine adds your target selling price and any shipping you charge to get Total Revenue, which is what the customer actually pays. Your Total Cost of Goods Sold is the item cost plus the supplier shipping. The Payment Processing Fee is the platform percentage applied to total revenue plus the flat fixed transaction fee. Total Costs is your COGS plus that processing fee plus your ad spend per sale. Net Profit is simply total revenue minus total costs, and Profit Margin is that net profit divided by total revenue. Separately, the Break-Even Ad Spend is total revenue minus COGS minus the processing fee, which is the most you could pay for one sale before profit hits zero. Every dollar figure is rounded to exact cents using floating-point-safe arithmetic so the receipt always adds up.
A Worked Example
Suppose you sell a product for 29.99 dollars with free shipping, giving Total Revenue of 29.99 dollars. Your supplier charges 8.50 dollars for the item and 3.00 dollars to ship it, for a COGS of 11.50 dollars. The payment processing fee is 2.9 percent of 29.99 dollars plus a flat 0.30 dollars, which is about 1.17 dollars. Your ad spend per sale is 10.00 dollars. Total costs come to 11.50 plus 1.17 plus 10.00, which is 22.67 dollars. Subtract that from the 29.99 dollar revenue and you keep 7.32 dollars in net profit, a 24.41 percent profit margin, which clears the 20 percent threshold and flags green. Your break-even ad spend is 29.99 minus 11.50 minus 1.17, which is 17.32 dollars, meaning your real cost per acquisition has 7.32 dollars of headroom before this product stops making money.
Why Ad Spend Is the Cost That Kills Dropshipping Stores
The reason so many stores post big revenue numbers yet still lose money is that advertising cost is invisible in the order total. The customer pays 29.99 dollars and Shopify cheerfully reports the sale, but it took ad spend to win that customer, and that cost is not deducted anywhere on the order screen. If your true cost per acquisition creeps above your break-even ad spend, every single sale loses money, and pouring more budget into the campaign only accelerates the loss. This is why the break-even ad spend figure on this tool is the most important number for a media buyer: it is the hard ceiling you compare your Facebook or TikTok dashboard CPA against. Stay under it and you scale profitably, cross it and you are paying for the privilege of making sales.
Reading the Status Banner and Visual Receipt
A green Profitable Product banner means your profit margin is above 20 percent, the level where your pricing absorbs ad costs and supplier fees efficiently and leaves a real cushion. A yellow Low Margin banner means you are still profitable, but the margin is between 0 and 20 percent, so a slight rise in ad costs will tip you into a loss. A red Unprofitable banner means your costs exceed your revenue, so you lose money on every order and need to raise your price or lower your ad costs immediately. The visual receipt below the hero exists to make one truth obvious: the gross revenue at the top is almost never what you keep. Watch how supplier costs, payment fees, and ad spend stack up against that total, and you will quickly build an instinct for pricing products that actually pay you for the work of running the store.
Frequently Asked Questions
A common rule of thumb is to aim for a net profit margin of 20 to 30 percent on each sale after the product cost, supplier shipping, payment processing fees, and your advertising cost per sale are all subtracted. Margins below 20 percent are considered fragile in dropshipping because advertising costs are unpredictable: a small rise in your cost per acquisition can wipe out a thin margin overnight. Many successful stores price their products at two to three times the total landed cost (item plus supplier shipping) specifically so there is enough room left over to absorb ad spend and payment fees and still keep a real profit. Low ticket impulse products often need a higher percentage margin because the dollar amount of profit per order is small, while higher ticket items can work at a slightly lower percentage because each sale brings in more absolute profit. Use the status banner on this tool as a quick green, yellow, or red read on whether your current pricing leaves enough cushion to survive real-world ad costs.
The number that matters is your cost per acquisition, or CPA, which is how much you spend on ads to get one paying customer. To find it, divide your total ad spend by the number of sales those ads produced. If you spent 200 dollars on a TikTok campaign and it brought in 20 orders, your CPA is 10 dollars per sale, which is the figure you enter in the Estimated Ad Spend per Sale field. New dropshippers almost always underestimate this number because they forget that most ad clicks do not convert, so the cost is spread across many non-buyers. A more useful planning approach is to read the Break-Even Ad Spend figure this calculator gives you: it tells you the absolute maximum you can pay for one sale before you start losing money. If your real-world CPA from the Facebook or TikTok ads dashboard is below that ceiling, you profit. If it is above the ceiling, every sale costs you money no matter how high your revenue looks.
High revenue and high profit are not the same thing, and dropshipping is the classic example. Every order carries the same stack of costs: the item price from your supplier, the supplier shipping, the payment processing fee, and the ad spend it took to win that customer. If those costs add up to more than the price the customer paid, then each additional sale deepens the loss rather than reducing it, and scaling the ad budget only makes the bleeding faster. The most common hidden culprit is advertising cost. Sellers see a big revenue number in Shopify, assume they are winning, and never calculate that their true cost per acquisition is higher than their margin can support. Other quiet profit killers are paying for supplier shipping you forgot to price in, underestimating the payment gateway percentage and fixed transaction fee on every order, and offering free shipping without raising the product price to cover it. Enter your real numbers here and watch the visual receipt: if the net profit line is red, no amount of extra sales volume will fix it until you raise your price or lower your ad cost.
Free shipping is one of the strongest conversion boosters in e-commerce because shoppers hate seeing a shipping charge appear at checkout, and many abandon their cart when it does. The standard dropshipping approach is to offer free shipping but bake the real cost into a higher product price, so the customer sees one clean number and you still cover your costs. There is one detail to keep in mind: your payment processor charges its percentage fee on the total amount the customer pays, so raising the product price to cover shipping slightly increases the processing fee too. That effect is small and almost always outweighed by the higher conversion rate free shipping produces. To model this in the calculator, set Shipping Charged to Customer to 0 and make sure your Target Selling Price is high enough that the net profit stays comfortably positive after your supplier shipping cost, payment fees, and ad spend are all subtracted. If the margin turns yellow or red, raise the selling price until the cushion returns.
No. Every calculation runs entirely inside your own browser using client-side JavaScript. The selling price, shipping, supplier costs, platform fees, and ad spend you enter are never transmitted, saved, or shared with any server. Nothing you type leaves your device, so your pricing strategy and profit numbers stay completely private.