Amazon FBA Calculator

Guide

About the Amazon FBA calculator

An Amazon FBA calculator is the single most important tool for anyone selling on Amazon with Fulfilment by Amazon. Before you launch a product — or when you are deciding whether an existing product is still worth selling — you need to know exactly what Amazon takes and what you actually keep. Amazon's fee structure is layered: a category referral fee, a weight-and-size-based fulfilment fee, a fuel surcharge, and optional storage costs. Get any one of them wrong and a product that looks profitable on paper can quietly lose money on every unit. This free calculator applies Amazon's current US 2026 fees so you can see your true net proceeds, profit and margin per unit in seconds.

The two fees that matter most.

Every FBA sale carries two core charges. The first is the **referral fee**, Amazon's commission for using the marketplace, charged as a percentage of the total sales price. The second is the **FBA fulfilment fee**, what Amazon charges to store-adjacent pick, pack and ship your unit to the customer. Together these usually make up the large majority of what Amazon deducts. On a typical $25 standard-size product, you might pay a $3.75 referral fee (15%) and roughly $4.35 in fulfilment fees including the surcharge — so about $8.10, or 32%, before your own product cost.

How the referral fee works.

The referral fee is a percentage of the item price plus any shipping and gift-wrap charges, subject to a **$0.30 per-item minimum**. Most categories — Home & Kitchen, Toys & Games, Sports & Outdoors, Office Products, Pet Supplies and many more — are **15%**. The main exceptions are lower: Consumer Electronics, Computers, Cell Phone Devices and Video Game Consoles are **8%**, while Automotive & Powersports and Industrial & Scientific are **12%**.

Some categories are **price-banded**, where the rate for the whole price depends on the band the price falls in: Clothing & Accessories is 5% up to $15, 10% from $15 to $20, and 17% above $20; Baby Products and Grocery are 8% up to their thresholds and 15% above. A few categories are **marginal-tiered**, applying a headline rate up to a breakpoint and a lower rate on the portion above: Jewelry is 20% up to $250 then 5%, Watches are 16% up to $1,500 then 3%, and Furniture is 15% up to $200 then 10%. Media items (Books, Music, Video, DVD, Software and Video Games) add a **$1.80 variable closing fee** on top of the 15% referral. Choose your category above and the calculator applies the correct rule.

How the FBA fulfilment fee works.

The fulfilment fee depends on your product's **size tier** and **unit weight**. This calculator covers the two standard-size tiers: **small standard** (light items up to 16 ounces) and **large standard** (up to 20 pounds). Amazon publishes a per-unit fee for each weight band — 2-ounce steps for small standard, 4-ounce steps for large standard — and for 2026 it split these into three **price bands** based on your sale price: under $10, $10 to $50, and over $50. A cheaper item is cheaper for Amazon to fulfil relative to its value, so items under $10 pay a lower fulfilment fee, and items over $50 pay a higher one, for the exact same weight.

For example, a large-standard unit weighing 12 ounces priced between $10 and $50 has a base fulfilment fee of $4.20. The same unit priced under $10 would be $3.38, and over $50 would be $4.46. Enter your size tier and weight and the calculator reads the right cell from Amazon's rate card.

The 2026 fuel and logistics surcharge.

As of 17 April 2026, Amazon applies a **3.5% fuel and logistics surcharge** on top of every base FBA fulfilment fee in the US and Canada. It is not baked into the published rate card — it stacks on the base fee — so the calculator shows it as a separate line. On a $4.20 base fee that adds about $0.15 per unit. Small on one sale, but meaningful across thousands of units.

Storage and the Professional plan.

Amazon also charges a **monthly storage fee** per cubic foot of inventory. For standard-size items in the non-peak January–September period this is around $0.87 per cubic foot, rising sharply to $2.40 in the October–December peak. Storage is billed on your average inventory, not per sale, so it is optional here — enter your unit's cubic-foot volume to fold in a rough per-unit monthly estimate. Separately, most sellers pay the **$39.99/month Professional selling plan**. That is a flat subscription regardless of how much you sell, so it is not deducted from any individual sale in this calculator; spread it across your monthly units to see its true per-unit impact.

Working out your real profit.

Your **net proceeds** are the sale price minus the referral fee, the fulfilment fee and the surcharge (plus storage if you include it). Subtract your **landed product cost** — manufacturing plus inbound freight to Amazon — to get your **profit per unit**, and the calculator also shows your **net margin** as a percentage of the sale price. This is the number that tells you whether a product is worth selling: many new sellers discover that after Amazon's fees and their cost of goods, a $25 product nets only a few dollars, which then has to cover PPC advertising, returns and long-term storage. Use the calculator to pressure-test your pricing before you commit to inventory.

Accuracy and scope.

Every rate in this calculator comes from Amazon's official US Seller Central fee pages and was verified on 2026-07-14. The 2026 standard-size fulfilment rate card was cross-checked against two independent full reproductions of Amazon's published table, which agreed on every weight and price-band value, and the worked example matches Amazon's own fee schedule. This version covers **standard-size products in the United States**. Oversize and bulky-item tiers, low-inventory and aged-inventory surcharges, removal and returns-processing fees, and non-US marketplaces are not modelled — they use separate rate cards we have not verified here, and we would rather leave them out than show a guessed number. Always confirm the final figure in Amazon's own Revenue Calculator in Seller Central before committing to a product, but for a fast, reliable estimate of what an FBA sale really earns you, this calculator gives you the real picture.