What does the FBA Size Tier Explorer do?

It shows you which Amazon FBA size tier your product falls into based on its dimensions and weight. An interactive 3D visualization updates in real time as you adjust sliders, and it displays the corresponding fulfillment fees and storage costs.

What are Amazon FBA size tiers?

Amazon categorizes products into size tiers (Small Standard, Large Standard, Small Oversize, Medium Oversize, Large Oversize, Special Oversize) based on weight and dimensions. Each tier has different fulfillment fees, so knowing your tier helps you estimate costs and optimize packaging.

Are the fee estimates accurate?

The tool uses the latest published Amazon FBA fee schedule. However, Amazon updates fees periodically, so always verify current rates on Seller Central before making business decisions. The tool is designed for estimation and comparison purposes.

What are boundary alerts?

When your product dimensions are within a small margin of a size tier boundary, the tool alerts you and shows exactly how much you could save by reducing dimensions to fit into the smaller tier. Even small packaging changes can lead to significant fee savings.

Does this tool send my data anywhere?

No. All calculations and the 3D visualization run entirely in your browser. No product dimensions, weights, or fee data are sent to any server.

FBA Size Tier Explorer

Adjust your product dimensions and weight with the sliders below to instantly see which Amazon FBA size tier your product falls into, the associated fulfillment and storage fees, and opportunities to drop into a cheaper tier.

Fee data last updated: 2025-01-15

Product Dimensions

Length (inches)

Width (inches)

Height (inches)

Weight

= 1.000 lbs

Pricing

Selling Price (USD)

Visual Preview

L: 10.0"W: 8.0"H: 4.0"

Large Standard

16 oz (1.000 lbs)

Large Standard Size Tier

Longest side ≤ 18", weight ≤ 20 lbs

Fee Breakdown

Fulfillment

Fulfillment Fee$4.75

Monthly Storage

Jan – Sep (per month)$0.16

Oct – Dec (per month)$0.44

Referral

Referral Fee (Everything Else)$4.50

At selling price $29.99

Total FBA Cost

Jan – Sep total$9.41

Oct – Dec total$9.69

Margin Estimate

Net (Jan–Sep)$20.58

Net (Oct–Dec)$20.30

Selling price minus FBA fees only. Does not include COGS, PPC, or other costs.

FBA Size Tier Explorer

Product Dimensions

Pricing

Visual Preview

Fee Breakdown

Frequently Asked Questions

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