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Amazon FBA Calculator

Calculate Amazon FBA fees, referral fees, fulfillment costs, and storage fees with 2026 rates. Find your true profit per unit.

Use this when

You need to estimate profit before sourcing or listing a product on Amazon FBA.

Enter your product details to see the full fee breakdown: referral fee, FBA fulfillment, and storage. Compare against your landed cost to find your true margin.

2026 FBA rates 12 product categories peak & off-peak storage

Product Details

Product Selling Price ($)

Product Cost ($)

Product Category Referral fee ranges from 8% to 17%. Minimum $0.30 per unit.

Product Size Tier

Product Weight (lb) Shipping weight. Amazon uses the greater of actual or dimensional weight.

Inbound Shipping to Amazon ($) Your cost per unit to ship inventory to Amazon warehouse.

Storage Season

Approx. Size Per Unit (cu ft) L × W × H in inches ÷ 1,728. A shoebox is ~0.25 cu ft.

Average Months in Storage

Monthly Units Sold

Fee Breakdown

Amazon Referral Fee

-$4.50

FBA Fulfillment Fee

-$4.90

Storage Fee

-$0.20

Inbound Shipping

-$1.00

Product Cost

-$8.00

Net Profit Per Unit

$11.39

Profit Margin

38.0%

ROI

61.2%

Estimated Monthly Profit
$1,139.00

Amazon FBA Fee Structure (2026)

Amazon charges three main fees for FBA sellers. All rates below are effective January 15, 2026.

Referral Fee (8%–17%): A percentage of the selling price based on product category. Minimum $0.30 per unit even on low-priced items.
FBA Fulfillment Fee: A per-unit fee for picking, packing, and shipping. Varies by size tier and weight. Increased by $0.12–$0.51 per unit in 2026 vs 2025.
Monthly Storage Fee: Charged per cubic foot of warehouse space. $0.78/cu ft standard (Jan–Sep) and $2.40/cu ft peak (Oct–Dec). Aged inventory over 12 months incurs additional surcharges.

Fee data based on Amazon FBA Fee Schedule, effective January 15, 2026. Last verified: March 2026. For exact figures, use Amazon Seller Central's Revenue Calculator.

Interpret the output

Target 30%+ margin for a sustainable Amazon business.

Below 20% leaves no room for PPC costs, returns, or fee increases. Margins above 40% are excellent and give you budget for aggressive advertising.