Last updated:
Amazon FBA (Fulfillment by Amazon) fees are charges Amazon deducts for storing, picking, packing, and shipping your products to customers. The main fee categories are: Referral Fee (8–15% of the sale price, depending on category), Fulfillment Fee (a per-unit charge based on size and weight), Monthly Storage Fee (charged per cubic foot of warehouse space), and Inbound Configuration Fee (for receiving shipments at fulfillment centers). Use the ylishi.tools FBA Fee Calculator to get an instant breakdown of every fee for your product.
To calculate your total FBA fees, add together the Referral Fee (a percentage of your selling price), the Fulfillment Fee (determined by your product's dimensions and weight), and the Monthly Storage Fee (based on the space your inventory occupies). For example, a standard-size product sold at $25.00 in the Home & Kitchen category would incur a ~15% referral fee ($3.75), a fulfillment fee around $3.45–$5.42, and roughly $0.78 per cubic foot in storage. The ylishi.tools calculator does all of this automatically — just enter your product dimensions, weight, and selling price.
A referral fee is a percentage-based commission Amazon charges for using its marketplace — it applies whether you use FBA or fulfill orders yourself. Rates range from 8% to 15% depending on the product category. A fulfillment fee, on the other hand, is a flat per-unit charge that covers Amazon's logistics: picking, packing, shipping, and customer service. Fulfillment fees vary by product size and weight — a small standard-size item costs around $2.68, while a large standard item can cost up to $5.42 or more. Both fees are deducted from your sale price, so understanding the distinction helps you forecast true profitability.
Amazon classifies products into size tiers — Small Standard, Large Standard, Small Oversize, Medium Oversize, and Large Oversize — based on dimensions and weight. Each tier has a different fulfillment fee: Small Standard items (≤1 lb, ≤15×12×0.75 in) cost about $2.68, Large Standard items range from $3.45 to $5.42, and Oversize items can cost $9.73 or more. Packaging and shipping costs rise sharply with each size tier, so optimizing product dimensions to fit a smaller tier can save significant fees. Use the ylishi.tools calculator to see exactly which tier your product falls into and what it costs.
Yes, there are several strategies to lower your FBA costs: (1) Optimize product packaging to reduce dimensions and qualify for a lower size tier — even a fraction of an inch can move you into a cheaper bracket. (2) Use the FBA Small and Light program for items under 12 oz and $10 to get reduced fulfillment fees. (3) Monitor storage duration to avoid long-term storage fees — aim to sell inventory within 90–180 days. (4) Choose the right product category, as referral fees vary from 8% (electronics) to 15% (most categories). (5) Ship inventory to fewer fulfillment centers using Amazon's inventory placement options. The ylishi.tools FBA Fee Calculator lets you test these scenarios and see the fee impact instantly.
| Product Size Tier | Weight Limit | Dimensions | Fulfillment Fee |
|---|---|---|---|
| Small Standard | ≤ 1 lb | ≤ 15 × 12 × 0.75 in | $2.68 |
| Large Standard | 1–3 lb | ≤ 18 × 14 × 8 in | $3.45 – $5.42 |
| Small Oversize | ≤ 70 lb | ≤ 60 × 39 × 18 in | $9.73+ |
| Medium Oversize | ≤ 150 lb | ≤ 108 × 75 × 18 in | $12.68+ |
| Large Oversize | ≤ 150 lb | > 108 in longest side | $15.47+ |