How this calculator works
This long-tail page focuses on the storage-fee query specifically, while still showing how monthly storage changes total product profit.
Use the storage field as a per-unit monthly storage estimate or a monthly allocation from the main storage calculator.
Referral Fee = Sale Price × Referral Fee %
Fixed Fees = FBA Fulfillment + Storage + Closing Fee
Total Amazon Costs = Referral Fee + Fixed Fees + Extra Percentage Cost
Profit = Sale Price − Amazon Costs − Product Cost
Default assumptions
| Input | Default |
|---|---|
| Sale price | 39 |
| Product cost | 14 |
| Referral fee | 15% |
| FBA fulfillment | 5.25 |
| Storage | 0.78 |
| Closing or fixed fee | 0 |
| Long-aged inventory surcharge rate | 0% |
Frequently Asked Questions
How is this different from the main storage calculator?
The main tool is better for dimensions and cubic feet. This page adds product profit impact for storage-fee searchers.
Should I use peak-season storage rates?
Use higher storage assumptions for October to December or when your Seller Central fee preview shows peak storage cost.
Can storage make a profitable product unprofitable?
Yes. Low-margin or slow-moving SKUs can lose money once storage and aged-inventory costs accumulate.