Top 9 Free Amazon FBA Calculators You Must Try

Free Amazon FBA Calculators

The biggest decision you’ll have to face as an Amazon seller is whether to fulfill the orders yourself or through FBA. Each option comes with pros and cons, but ultimately the decision should be based on the profits.  

In fact, fulfilling some products through FBA could result in very low to no profits, not to mention that in some cases it could even result in loss.

On the other hand, FBA comes with so many advantages that it’s impossible to just ignore it. So, how can you decide?

Luckily, Amazon practices a very transparent FBA fees policy. Moreover, you can also use an Amazon FBA calculator to check product profitability, margins, and estimated fulfilling fees when shipping your orders either through FBA or FBM.

1. Selling on Amazon FBA Fees

Before finding out how to calculate fees, you should understand why FBA is better than self-fulfillment and what fees the marketplace applies.

What is Amazon FBA?

FBA stands for fulfillment by Amazon and refers to a program where the marketplace manages your orders and fulfills them on your behalf. This comes with multiple benefits for both you and your buyers.

Some of the main advantages include:

How Does FBA Work?

To join Amazon FBA, you will have to opt into the program from your Amazon seller central account. Then, you will have to pack, label, and ship your products to an Amazon warehouse.

All this is done through the seller central. Here, you’ll also have the possibility to track your inventory, set up alerts, and replenish your stock whenever needed.

If you don’t want to label your products, Amazon can do this on your behalf for an extra fee.

Now, the best part is that once the Amazon receives your items, they become immediately available for sale.

From now on, you won’t have any other worries than watching orders flow and your profits grow. As it’s easy to imagine though, all this comes at a cost.

Amazon FBA Fees

Amazon calculates its FBA fees by weight and size of each unit you sell. They are broken down into two types of fees, fulfillment fees, and monthly inventory fees.

Fulfillment Fees

Are fees Amazon charges for handling your orders, including picking and packing the units, shipping and handling fees, customer service, and management of any product returns.

These fees are further divided into Standard-Size and Oversize.

Standard sizeFeeOversizeFee
Small 10 oz. or less$2.41Small 71 lbs. or less$8.26 + $0.38/lb. above first 2lbs
Small 10 – 16 oz.$2.48Medium 151 lbs. or less$9.79 + $0.39/lb. above first 2lbs
Large 10 oz. or less$3.19Large 151 lbs. or less$75.78 + $0.79/lb. above first 90lbs
Large 10 – 16 oz. $3.28Special oversize$137 + $0.91/lb. above first 90lbs
Large 1 – 2 lbs. $4.76  
Large 2 – 3 lbs. $5.26  
Large 3 – 21 lbs. $5.26 + $0.38/lb. above first 3 lbs.  

Clothing items, as well as items containing lithium batteries, incur further costs of $0.40 and $0.11 per unit respectively.

Monthly Inventory Fees

The second part of FBA fees you have to account for is the monthly inventory storage fee. These are calculated by the cubic foot, so the smaller your units and the more you sell, the less you’ll have to pay.

The factors that come into account when Amazon calculates your inventory storage costs are, in fact, the size of your unit, the daily average volume, as well as the season.

These fees are also different for standard size and oversized products, and you can expect to pay:

Standard sizeFeeOversizeFee
Jan – Sept$0.69 per cubic footJan – Sept$0.48 per cubic foot
Oct – Dec$2.40 per cubic footOct – Dec$1.20 per cubic foot

All fees above refer to standard FBA fulfillment, but you also have other options. Besides the standard program, Amazon also offers:

Each of the three alternative programs mentioned above comes with different fulfillment fees and may open the door to new opportunities.

Besides FBA, you could also opt to fulfill your own orders. You won’t have to pay any fees to Amazon, but this solution could be costlier unless you’re selling very small items you can store in your home.

To decide which fulfillment option is the most profitable, you can use one of the many Amazon FBA calculators.

2. 9 Free Amazon FBA Calculators You Should Try

A quick way to keep your Amazon fees under control and decide which fulfillment method could work best is with the help of an Amazon FBA calculator. Here are 9 you can use for free.

Amazon Revenue Calculator

Fulfillment by Amazon Revenue Calculator is a web app delivered by Amazon’s seller central.

It is very easy to use and gives you a clear idea of what FBA fees you will incur. The calculator shows you in detail whether you should opt for FBA or FBM.

Besides clear comparisons between options, you can also use this calculator to decide which would be the best price for your product.


Amazon FBA Calculator by Sellerapp

Another reliable calculator to consider is the one by Sellerapp. This comes in either web or Chrome extension variants.

The web version lets you search for products based on their ASIN or Amazon link. Click on Calculate FBA Profits button to get a clear idea of fees.

If you want to check out FBA fees while browsing through products, install the Chrome extension and click on it each time you find an interesting product.


Jungle Scout FBA Profit Calculator

Unlike other calculators on this list, the one proposed by Jungle Scout comes as a downloadable XLS file.

You will receive it into your mailbox and can use it to get an accurate estimation of product profitability, net margin, net profit, and FBA fees.


AMZScout FBA Fees Calculator

One of Jungle Scout’s main competitors, AMZScout couldn’t have missed the opportunity to create a free FBA fees calculator.

And it even did it better than JS. This one comes as a Chrome extension and is similar to the one proposed by SellerApp.


Viral Launch Amazon FBA Calculator

Viral Launch is one of the most popular providers of tools and services for Amazon sellers. Most of its products come for a fee, but one you can get for free is the Amazon FBA Calculator.

All you have to do is insert an ASIN or product link, the landed unit cost if you want to, and click on the button to get accurate estimations of your margins and profits.



This calculator by Salecalc doesn’t let you calculate your estimated profit for a specific product, but rather for any product in a category.

It’s not as accurate as other calculators on this list, but we included it because it’s very intuitive and easy to use.


Shipbob Amazon FBA Cost Calculator

Coming as an alternative to the Amazon seller central calculator, this one by Shipbob bases its results on the prices for FBA services Amazon practiced in the past months.

To provide accurate results, it lets you calculate based on the number of orders you receive, size of the package, average item weight, and other variables that may have an impact on the FBA fee.


Fetcher Profit Calculator

While Fetcher Profit Calculator does a great job in calculating your potential Amazon FBA fees, this tool is designed to calculate your profit.

In doing so, it takes into account many variables that other calculators don’t even consider, such as your upfront costs, fixed costs, variable costs including the FBA fees, and marketing costs, so you can truly make an informed decision about product profitability.


Sellerdynamics Amazon Profit Calculator

The Amazon Profit Calculator by Sellerdynamics is developed for Amazon sellers in the UK. It is very simplistic and intuitive to use.

Just fill in the required details, and you’ll get a comprehensive breakdown of all the fees and profit you can expect.  



Amazon FBA calculators may not be exactly accurate, but they are undoubtedly a useful tool to use when deciding the profitability of a product.

A simple way to achieve more accurate estimates is by using several calculators and comparing the results.

Whether you decide to use just one or a few, it’s certain that they can help you optimize your business.

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