Amazon Seller Profit Calculator
Estimate your Amazon profit, margin and ROI based on sale price, product cost, Amazon fees, shipping and advertising costs.
Overview
This Amazon Seller Profit Calculator helps you estimate per-unit profit after product cost, Amazon referral fees, fulfillment cost, advertising spend and other expenses. It is useful for checking whether a product leaves enough margin before you decide to source, price or scale it.
How it works
The calculator first estimates the Amazon referral fee by multiplying your sale price by the fee percentage. It then adds that fee to your product cost, fulfillment cost, ad cost and other per-unit costs to get total cost. Net profit is your sale price minus total cost. Profit margin shows profit as a percentage of the selling price, and ROI compares profit with your product cost.
How to use this calculator
- 1Enter your sale price per unit.
- 2Add your product cost per unit.
- 3Enter the Amazon referral fee percentage for your category.
- 4Add your fulfillment cost, advertising cost and any other per-unit costs.
- 5Review the estimated profit, margin, ROI and total cost.
Example Calculation
Sale Price
$30
Product Cost
$9
Amazon Referral Fee
15%
Fulfillment Cost
$5
Advertising Cost
$3
Other Cost per Unit
$1
Net Profit per Unit
$8.29
For a product sold at $29.99 with $8.50 product cost, 15% Amazon fee, $5.20 fulfillment, $2.50 ads and $1.00 other costs, the estimated net profit is about $8.29 per unit, with a margin near 27.6% and ROI near 97.5%.
Frequently asked questions
What does this Amazon Seller Profit Calculator estimate?
It estimates your per-unit net profit, total cost, profit margin, ROI and Amazon referral fee based on the numbers you enter.
Does this calculator include all Amazon fees?
No. It includes the referral fee percentage you enter and any additional costs you add, but it does not automatically include every possible Amazon charge.
What should I include in product cost?
Product cost usually includes the landed cost per unit, such as manufacturing, wholesale purchase cost and inbound shipping if you want that included there.
Should advertising cost be entered per click or per sale?
Enter your average advertising cost per unit sold, not cost per click, so the profit estimate reflects one completed sale.
What is a good profit margin for Amazon selling?
That depends on your category, return rate, competition and business model. Many sellers use this calculation to compare products rather than rely on one fixed margin target.
Why is ROI different from profit margin?
Profit margin compares profit with the sale price, while ROI compares profit with your product cost. They measure different parts of profitability.
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Assumptions and warnings
Assumptions
- Results are estimates based only on the values you enter.
- Amazon referral fees are calculated as a percentage of the sale price entered.
- All costs are treated as per-unit costs.
- Taxes, refunds, chargebacks and long-term storage fees are not included unless added to other costs.
Warnings
- This calculator provides an estimate only and is not financial advice.
- Actual Amazon fees and profitability can vary by category, fulfillment method, returns and account charges.