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An FBA fee simulator is a tool that estimates all Amazon Fulfillment by Amazon fees before you ship products to a warehouse. It calculates referral fees, fulfillment fees, storage fees, and other charges based on your product's dimensions, weight, and category. The ylishi.tools FBA Fee Simulator uses 2026 Amazon fee rates so you can plan costs accurately and avoid surprises after your inventory is already in Amazon's fulfillment centers.
The simulator lets you input your product dimensions, weight, and selling price, then automatically calculates the total cost under FBA versus self-fulfillment (FBM). For FBA, it includes fulfillment fees ($2.68-$7.22 for standard-size), storage fees ($0.75-$2.25/cubic ft), and referral fees. For self-fulfillment, you enter your own shipping and packing costs. This side-by-side comparison helps you decide which method is more profitable for each product.
The FBA fee simulation accounts for all major fee categories:
All rates are based on Amazon's officially published 2026 fee schedule and updated regularly.
Amazon charges monthly storage fees based on the volume (cubic feet) your inventory occupies. During standard months (January through September), storage costs $0.78 per cubic foot for standard-size items. During the peak season (October through December), this increases to $2.40 per cubic foot. The simulator calculates storage fees based on your product's dimensions and lets you project costs for different inventory durations to avoid long-term storage surcharges.
Yes. The simulator lets you project storage fees across multiple months. Enter your product's dimensions and specify how long you expect inventory to stay in the warehouse. The tool will calculate cumulative storage costs and flag when your inventory may trigger Amazon's aged inventory surcharges. This helps you plan inventory turnover rates and decide whether to run promotions or remove slow-moving stock before extra fees kick in.
| Fee Component | FBA (Fulfillment by Amazon) | Self-Fulfillment (FBM) |
|---|---|---|
| Pick & Pack Fee | $2.68 - $7.22 per unit | $0 (you handle it yourself) |
| Storage Fee (Standard) | $0.78 / cubic ft / month | Your own warehouse rent |
| Storage Fee (Peak Season) | $2.40 / cubic ft / month | Your own warehouse rent |
| Referral Fee | 8 - 15% | 8 - 15% (same for both) |
| Shipping to Customer | Free Prime 2-day delivery | You pay carrier rates |
| Returns Handling | Amazon manages returns | You process returns manually |
| Aged Inventory Surcharge | Extra fees after 181+ days | No extra fees |