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Amazon FBA Calculator (2026 US Fees)

Enter your price, product cost and package size. See every fee Amazon takes, your profit per unit, margin, ROI and how much you can spend on ads before you lose money.

Product details

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Package size (packed, as Amazon measures it)

Your costs per unit

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How Amazon FBA fees work in 2026

Every FBA sale carries two main fees. The referral fee is Amazon’s commission, a percentage of the sale price that depends on your category. The fulfillment fee pays for picking, packing and shipping the order, and depends on your product’s size tier, shipping weight and price. On top of those you pay for storage, inbound shipping and, for most sellers, advertising.

Net profit = Sale price − Referral fee − FBA fee − Product cost − Inbound shipping − Storage − Ads − Other

1. Referral fee

Most categories charge 15% of the total sale price, with a $0.30 minimum per item. Some categories are cheaper or tiered. Consumer electronics is 8%. Beauty, health and baby products are 8% at $10 or under. Clothing is 5% at $15 or under, 10% from $15 to $20 and 17% above $20. Jewelry and furniture apply a lower rate only to the part of the price above a threshold.

2. FBA fulfillment fee

Amazon first places your packed product in a size tier, then charges by shipping weight within that tier. Since 2024, fees also depend on price band: items under $10 pay less, items over $50 pay more.

Size tierMax dimensionsMax weight
Small standard15 × 12 × 0.75 in16 oz
Large standard18 × 14 × 8 in20 lb
Small bulky37 × 28 × 20 in, length + girth ≤ 130 in50 lb
Large bulky59 × 33 × 33 in, length + girth ≤ 130 in50 lb

For anything bigger than small standard, Amazon uses the greater of the unit weight and the dimensional weight (L × W × H ÷ 139). That’s why a light but bulky box can cost more than you expect.

3. Fuel surcharge and peak season

Since April 17, 2026 a 3.5% fuel and logistics surcharge applies on top of the fulfillment fee in the US and Canada. During the holiday peak (October 15, 2026 to January 14, 2027) fulfillment fees rise by about $0.32 per unit on average. Tick the peak box in the calculator to include it.

Worked example

A kitchen gadget sells for $24.99. It ships in a 9 × 6 × 2 inch box and weighs 0.7 lb. The 2-inch height puts it in large standard. Its dimensional weight (9 × 6 × 2 ÷ 139 = 0.78 lb) beats the unit weight, so the 12–16 oz row applies: $4.60, or $4.76 with the surcharge. The referral fee is 15% × $24.99 = $3.75. With a $6 product cost, $0.60 inbound shipping, $0.15 storage and $2 of PPC per unit, you keep about $7.73 per unit, a 31% net margin.

How to read your results

5 ways to cut FBA fees

  1. Shrink the box. Getting under 0.75 inches tall, or under a weight break, can drop a whole tier.
  2. Watch the $10 and $50 price lines. Pricing at $9.99 instead of $10.49 can lower the fulfillment fee by around $0.80.
  3. Avoid low-inventory fees. Keep 4+ weeks of stock to stay clear of Amazon’s low-inventory-level fee.
  4. Use Amazon-optimized inbound placement to avoid inbound placement fees where it makes sense.
  5. Bundle small items. Several cheap items in one listing usually pay one fulfillment fee instead of several.

Frequently asked questions

How much does Amazon FBA charge per unit in 2026?

Two main fees: a referral fee (15% in most categories, $0.30 minimum) and a fulfillment fee based on size tier, shipping weight and price band. Fulfillment fees start at $2.43 for the smallest items under $10, plus the 3.5% fuel and logistics surcharge.

What is the 3.5% FBA fuel and logistics surcharge?

Since April 17, 2026 Amazon adds 3.5% on top of the FBA fulfillment fee in the US and Canada. It is charged on the fulfillment fee only, not the sale price.

When do Amazon peak season fees apply?

For the 2026 holiday season, from October 15, 2026 to January 14, 2027, adding roughly $0.32 per unit on average in the US.

What is a good profit margin on Amazon FBA?

Many sellers aim for at least 25–30% net margin after Amazon fees and product costs, before advertising. That leaves room to run PPC and stay profitable.

Is this the same as Amazon’s Revenue Calculator?

It uses the same published fee tables, but Amazon’s calculator uses the dimensions Amazon measured for your ASIN. Use this tool to compare product ideas quickly, then confirm final numbers in Seller Central.

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