One page. Real numbers. Every fee Amazon charges — before you commit to a single unit.
Three years ago, I listed my first product on Amazon. I had done my homework — or so I thought. I knew my cost of goods. I knew what I wanted to sell it for. I figured the rest would work itself out.
It didn't.
What I hadn't fully accounted for was everything Amazon quietly takes before a single dollar reaches me. The referral fee. The FBA fulfillment fee. Monthly storage. Inbound shipping. The duty I paid to get my goods into the country. The factory inspection. The packaging that somehow costs more per unit than I budgeted. A 1% return rate that eats into margin every single month.
By the time you add it all up, a product that looked like a 30% margin product on paper turns into a 9% margin product in practice — or worse, a loss.
When I'm sourcing a new product — whether I'm at a trade show, on Alibaba at midnight, or evaluating a sample a supplier sent me — I need to answer one question fast:
If I sell this at $X, what do I actually make?
Not a rough estimate. Not a guess. The real bottom line, after every single cost Amazon is going to take from me. And alongside that: what price should I set at launch to be competitive, and what's the price I need to target to hit the profit margin I want?
I tried every tool out there. Jungle Scout's calculator. Helium 10's profitability tool. Amazon's own Revenue Calculator. Spreadsheet templates I found on Reddit. None of them gave me what I needed in one place, in one view, in under a minute.
They were either too simple (missing half the costs), too complicated (built for accountants, not sellers making fast sourcing decisions), or locked behind a $99/month subscription for features I'd use 5% of the time.
I wanted a calculator that worked the way I think when I'm evaluating a product. One page. Every number visible at once. No tabs, no exports, no account required.
Enter your ASIN and it pulls in the Amazon sale price, product dimensions, FBA fulfillment fee, and your current FBA inventory directly from Amazon's own data. Then you fill in your costs — manufacturing, packaging, freight, duty, inbound shipping — and the calculator does the rest.
In seconds, you see:
That last one matters more than people realize. The calculator is a decision tool, not just a reporting tool. You can play with your price point until the margin looks right, then launch with confidence knowing that number is real.
Most FBA calculators stop at referral fee + fulfillment fee. This one doesn't. Here's everything it accounts for:
Because I'm an Amazon seller, not a SaaS company. I built this for myself and I'm sharing it because I know how many hours I wasted trying to piece this together from five different tools and a spreadsheet.
I hope it helps other sellers make faster, smarter sourcing decisions — and launch products at price points that are actually profitable from day one, not just hopeful.
No signup. No credit card. No free trial. Just the calculator. Use it as many times as you want.
One feature I use constantly: the ASIN lookup. Paste in any Amazon ASIN and it pulls the live sale price, product dimensions, and FBA fee estimate straight from Amazon's data — automatically. No manual looking up fees in Seller Central, no guessing at size tiers.
If you're evaluating a competitor's product or modeling out a variation of something you already sell, it's the fastest way to get real numbers into the calculator without touching a single form field manually.
No account. No signup. Just real FBA profit numbers in under 60 seconds.
Open the FBA Profit Calculator →