XBKit·Amazon

FBA Profit Calculator

Calculate your net profit, margin, ROI, and break-even price for Amazon FBA products.

Enter Details
Quick Presets— select to auto-fill fields below

↓ Start by entering your Sale Price

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Advertising & Returns
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Results

Net Profit

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Profit Margin

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ROI

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Break-even

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Referral Fee

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Total Costs

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Formula
Net Profit=Sale Price−Product Cost−Referral Fee−FBA Fulfilment Fee−Other Costs
  • Referral fee (most categories)15%
  • FBA fee — standard size$3.17 – $6.49
  • Platform avg ACoS~32%
  • Target net margin20 – 30%
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How to Use

  1. 1

    Enter your selling price and category

    Input your Amazon selling price and product category. The referral fee percentage is set based on your category.

  2. 2

    Add cost of goods and shipping to FBA

    Enter your product cost (COGS) and the cost of shipping inventory to Amazon's fulfillment warehouse.

  3. 3

    Review FBA fees

    The calculator shows fulfilment fee, referral fee, and estimated storage cost broken down individually.

  4. 4

    Analyze net profit and ROI

    See your net profit per unit, profit margin percentage, and ROI. Adjust inputs to find a viable price point.

Frequently Asked Questions

What fees does Amazon FBA charge?

FBA fees include: a referral fee (a percentage of selling price, typically 8–15% depending on category), a fulfillment fee (based on product size tier and weight), and monthly storage fees. Some categories also have closing fees.

What is a good profit margin for Amazon FBA?

Experienced FBA sellers target 20–30% net margin after all fees and COGS. Below 15% leaves insufficient room for PPC advertising and unexpected costs like returns, promotions, or storage surcharges.

How do I calculate my break-even price on Amazon?

Add cost of goods + shipping to FBA + Amazon fees (referral + fulfillment + storage). The sum is your break-even. Your selling price must be higher than this to generate profit.

Does the calculator include advertising costs?

No — enter your PPC spend manually in the additional costs field. Your net margin should account for advertising to give a realistic picture of per-unit profitability.

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ACoS CalculatorPPC CalculatorBreak-Even CalculatorPrice & Margin Calculator