Calculator

Amazon FBA Profit Calculator

Estimate what you actually keep on each FBA unit after product cost, shipping, marketplace fees, storage and advertising.

AVAILABLE · runs in your browser, nothing is sent

Your numbers

The price the shopper pays.
What you pay your supplier per unit.
Freight, duties and prep per unit.
Use the rate for your category from the marketplace fee page.
From the marketplace fee schedule for your product size and weight.
Your estimate of storage per unit sold.
Total ad spend divided by units sold.
Returns allowance, packaging, software and so on.
How many units you expect to sell.

Results

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Profit per unit{{r0}}
Profit margin{{r1}}
Return on investment (ROI){{r2}}
Break-even selling price{{r3}}
Total profit for the units{{r4}}
Total cost per unit{{r5}}
{{verdict}}

How to use it

  1. Replace the example numbers with your own. Every field has a short hint.
  2. Fix any message shown in the orange box. Fields must be valid numbers inside the allowed range.
  3. Read the results and the plain-language note under them.
  4. Change one number at a time to see what moves the result.

Formulas used

  • Referral fee = selling price × referral rate
  • Total cost per unit = product cost + shipping + referral fee + fulfilment fee + storage + advertising + other
  • Profit per unit = selling price − total cost per unit
  • Profit margin = profit ÷ selling price × 100
  • ROI = profit ÷ (product cost + shipping) × 100
  • Break-even price = (all costs except referral fee) ÷ (1 − referral rate)

Assumptions and limits

  • All fees and costs are values you enter. Marketplace fees change, so check the current fee schedule.
  • The pre-filled numbers are only an example, not typical results.
  • Taxes, currency conversion, and returns beyond your allowance are not included.

Results are estimates from your inputs, not financial advice or a guarantee of outcome.

Frequently asked questions

Does this include every Amazon fee?

No. It uses the fees you type in. Add any other fee into the Other costs field.

What is a good margin?

It depends on your category, price and goals. Compare margin with the risk and the capital you tie up.

Why do the example numbers matter?

They are only there to show how the calculator works. Replace them with your own.

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