Dropshipping profit calculator
Put in what a product costs you and what you would sell it for. You get the profit, the margin and the price you need just to break even. Free, no sign-up, and nothing is sent anywhere.
What the supplier charges you per unit.
What it costs to get one unit to the customer.
What the customer pays you.
eBay is around 13%, Amazon 8–15%, Shopify payments about 3%.
Profit per sale
$13.44
Profit margin
53.8%
Break-even price
$9.54
You keep $13.44 of every $24.99 sale. Sell 100 and that is $1,344.13.
- Landed cost
- $8.30
- Marketplace fee
- $3.25
Everything runs in your browser. No email address, no account, and none of these numbers leave your computer.
How the calculation works
profit = selling price − marketplace fee − product cost − shipping
margin = profit ÷ selling price × 100
Margin is not markup
The most common mistake. Buy at $10 and sell at $20 and your markup is 100%, but your margin is 50% — profit divided by the selling price, not by the cost. Fees and shipping then come out of that 50%, not out of the $20.
The fee comes off the selling price
A marketplace takes its cut of what the customer paid, not of your profit. On a $25 sale at 13%, that is $3.25 gone before you have paid for the product. Raising your price raises the fee with it, which is why the break-even price above is higher than your landed cost.
What this calculator does not include
Advertising, returns, chargebacks, and the payment processor if it bills separately from the marketplace fee. A product showing a thin margin here is usually a loss once ad spend is counted. Treat the figure as your ceiling, not your take-home.
Typical marketplace fees
Use your own account's real rate where you know it — these are starting points, and categories vary.
| Where you sell | Rough fee |
|---|---|
| eBay | About 13% of the total sale |
| Amazon | 8–15% referral, by category |
| Etsy | 6.5% plus listing and payment fees |
| Shopify / your own store | Around 3% payment processing |
Doing this one product at a time is fine for a product you have already decided on. The harder job is choosing between the forty you looked at this week — which is what the Sourcebook extension does: it saves each product as you browse, runs this same calculation on all of them, and sorts your shortlist so the best margin is on top.
Run this on every product, not one at a time.
Sourcebook saves products as you browse and does this maths on all of them, best margin first.