Calculator Inputs
Use current marketplace fees for better forecasting. The default values are editable starting points.
Example Data Table
This sample illustrates one plausible private-label scenario using editable default values.
| Units | Price | Referral Fee | Fulfillment Fee | Storage Fee | Total Cost / Unit | Profit / Unit | Margin |
|---|---|---|---|---|---|---|---|
| 250 | $28.99 | $4.35 | $4.95 | $0.23 | $22.89 | $6.10 | 21.04% |
Formula Used
- Referral fee per unit = max(Selling price × Referral rate, Minimum referral fee)
- Storage fee per unit = Volume per unit × Monthly storage rate × Storage months
- Returns allowance per unit = Selling price × Returns allowance rate
- Amazon fees per unit = Referral fee + Fulfillment fee + Closing fee + Storage fee
- Total cost per unit = Product cost + Inbound shipping + Prep cost + Amazon fees + Advertising + Returns allowance + Other cost
- Net profit per unit = Selling price − Total cost per unit
- Net margin (%) = Net profit total ÷ Gross revenue × 100
- ROI (%) = Net profit total ÷ Total costs × 100
- Break-even price = Total cost per unit
How to Use This Calculator
- Enter your expected units for the batch or planning period.
- Add the selling price and direct product cost per unit.
- Input marketplace fee assumptions like referral, fulfillment, and closing fees.
- Estimate inbound shipping, prep, storage, advertising, returns, and any miscellaneous costs.
- Click Calculate Fees to see profit, margin, ROI, fee burden, and break-even price.
- Use the export buttons to save the current result as a CSV or PDF file.
- Adjust values to compare pricing scenarios, promotion plans, or storage-duration changes.
Frequently Asked Questions
1) What does this calculator estimate?
It estimates Amazon-related selling fees, landed costs, total costs, profit per unit, total profit, margin, ROI, and break-even price using your own assumptions.
2) Are the default fee values universal?
No. Amazon fees vary by category, size tier, season, and marketplace. Treat the defaults as examples and replace them with your current rates.
3) Why include a returns allowance?
Returns reduce real profit even before they happen. A return reserve helps forecast more conservatively and avoids overstating expected margin.
4) What is fee burden?
Fee burden shows what percentage of your selling price is consumed by Amazon-related fees such as referral, fulfillment, closing, and storage charges.
5) What does break-even price mean here?
It is the minimum selling price needed to cover the full estimated cost per unit. Anything above that level becomes profit.
6) Should advertising be counted as a per-unit cost?
Yes, when you convert campaign spend into a per-unit estimate. That gives a more realistic profit picture for paid acquisition.
7) Can I use this for bundles or multipacks?
Yes. Enter all numbers on a bundled-unit basis, including product cost, fee assumptions, storage volume, and selling price for the full bundle.
8) What improves forecast accuracy most?
Use current category rates, real inbound shipping quotes, exact package dimensions, recent ad costs, and a realistic returns reserve.