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Jack Green
Jack Green

Posted on Originally published at tools.jackgreen.top

Free Amazon FBA Fee Calculator (Because SellerApp Charges $29/Month)

Free Amazon FBA Fee Calculator (Because SellerApp Charges $29/Month)

You're selling on Amazon FBA. You need to know your fees before you ship inventory.

So you find SellerApp. It's a solid tool suite.

Except... it costs $29/month for a fee calculator that does what should be free.

That's $348 a year for a tool you use maybe once per product launch.

The Problem

SellerApp is a fantastic product suite — but for sellers who just need to calculate FBA fees, it's overkill.

You're paying for:

  • A dozen tools you'll never use
  • A monthly billing relationship for something that should be free
  • Account setup and credit card requirements
  • Learning curves for features you don't need

Meanwhile, your FBA fee calculation is just... math.

The Solution

I built a free, browser-based Amazon FBA Fee Calculator that runs entirely in your browser. No signup, no account, no monthly fee.

Try it now: https://tools.jackgreen.top/mazon-fba-fee-calculator-pro-as-a-sellerapp-alternative/

How It Works

It's a single HTML file. That's it.

  1. Open the calculator in your browser
  2. Enter your product price, weight, and dimensions
  3. Select your product category
  4. See your fee breakdown update in real time
  5. Copy the results to clipboard

The calculator shows:

  • Referral fee — percentage based on category (8%-17%)
  • FBA fulfillment fee — based on weight and size tier
  • Closing fee — $1.80 for media items
  • Storage estimate — based on volume × monthly rate
  • Net profit — what you actually keep

Features

  • Real-time fee breakdown — see costs update as you type
  • Multi-category support — accurate referral rates for all Amazon categories
  • Size tier detection — automatically determines standard vs oversized
  • One-click copy — export your fee breakdown to clipboard
  • Works offline — single HTML file you can save and use anywhere
  • Privacy-first — your product data never leaves your browser

Who Is This For?

  • Amazon FBA sellers who need to calculate fees quickly
  • Small business owners on a budget
  • Anyone who finds SellerApp or Jungle Scout too expensive
  • Sellers who just want a simple fee calculator without the bloat

Why Not Just Use a Spreadsheet?

You could create an FBA fee spreadsheet. But then you'd need to:

  • Look up the current fee tables (they change annually)
  • Build the formulas yourself
  • Remember to update them every year

This calculator has the latest fee tables built in and works instantly in any browser.

Final Thoughts

You shouldn't need to pay $29/month to do basic math. This calculator gives you exactly what you need — accurate FBA fee estimates — for free, forever.

Try the free calculator now →

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