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Amazon Profit Calculator Tool

Estimate your Amazon profit per unit and for any number of units. Enter your price, referral fee %, FBA/fulfillment fees, COGS, inbound/prep, ads, and other costs to get net profit, margin, ROI, and break-even sale price.

Note: This tool is for quick planning and excludes marketplace-specific taxes (sales tax/VAT) unless you add them as a cost.

Category: Finance · URL: /tools/amazon-profit-calculator-tool.html
Used only for display (e.g., $, €, £).
All costs below are per unit.
For FBM, put your pick/pack/shipping here (or in “Other”).
Shows the sale price needed to hit your target profit per unit.
Related: Percentage Tool Calculator · Online Percentage Converter · VAT Tool Checker
Privacy: runs locally in your browser. No uploads, no tracking scripts.

How to use

Use this to sanity-check product profitability before you source or launch.

  1. Enter your Sale price and Units.
  2. Add your COGS and any Inbound/Prep cost per unit.
  3. Enter your Referral fee % and your Fulfillment (FBA/FBM) fee.
  4. Optionally add Ads (PPC), Storage, Closing, and Other per-unit costs.
  5. Click Calculate to see profit, margin, ROI, and break-even price.
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Secondary intents covered: Calculate net profit per unit after Amazon fees and costs, Estimate total profit for a planned order quantity, Find break-even sale price given referral fee percentage, See how PPC/ads change margin and ROI, Compare scenarios by adjusting FBA/fulfillment fees, Decide if a product is worth sourcing based on ROI, Compute required sale price for a target profit per unit, Get a simple fee breakdown to copy into a spreadsheet

FAQ

What does this Amazon profit calculator include?

It includes referral fee %, fulfillment (FBA/FBM), storage, closing fee, ads/PPC, COGS, inbound/prep, and an “other” cost line—then calculates profit, margin, ROI, and break-even.

Does it include sales tax or VAT?

No. If you need to account for taxes, add them as an extra per-unit cost (e.g., in “Other”).

How do I estimate the referral fee?

Use the category referral percentage you expect and enter it in “Referral fee (%)”. The tool calculates it as a percent of sale price.

What’s the difference between profit margin and ROI here?

Margin is profit ÷ sale price. ROI is profit ÷ total expenses (all costs plus referral fee at that price).

How is break-even sale price calculated?

Break-even is the price where profit becomes zero, factoring in the referral fee percentage: fixed costs ÷ (1 − referral%).

Can I use this for FBM instead of FBA?

Yes—enter your FBM pick/pack/shipping cost in “Fulfillment fee” (or “Other”) and leave FBA-related lines at 0.

How should I include PPC or returns?

Add average PPC spend per unit in “Ads / PPC cost” and any expected return/defect cost in “Other cost”.