Is the Amazon FBA calculator free?

Yes — 100% free. Everything is calculated privately in your browser; nothing is stored or sold.

Amazon FBA Calculator

Q: How much does Amazon FBA take per sale?

Amazon charges a referral fee (about 15% of the sale price for most categories) plus an FBA fulfillment fee per unit that depends on size and weight (often a few dollars), and optional monthly storage. This free calculator adds them to your product cost so you see your real profit, margin, and ROI.

Q: Does it calculate ROI?

Yes. It shows net profit per unit, profit margin, and return on investment (profit divided by your product + inbound cost) so you can judge whether a product is worth sourcing.

See your real profit, margin & ROI per unit after Amazon fees

Profitable

Sale price

Product cost (COGS)

Inbound shipping (per unit, to Amazon)

FBA fulfillment fee (per unit)

Advanced — referral %, storage & other costs

Referral fee %

Storage / mo (per unit)

Other cost (per unit)

Net profit per unit

$0.00

0% margin

More free tools FREE

Reverse calculator — what price hits a target margin %

Suggested sale price—

Amazon FBA Calculator — guide & how to use

What it does

The Amazon FBA Calculator shows your real profit, margin, and ROI on every unit after Amazon's referral fee and FBA fulfillment fees. Enter your sale price and costs and it instantly returns net profit per unit, profit margin, return on investment, and a line-by-line fee breakdown — calculated privately in your browser, free. It answers the question every FBA seller asks before sourcing: "after Amazon's fees, is this product actually worth it?"

How to use it

Enter your sale price and product cost (COGS).
Add inbound shipping per unit and the FBA fulfillment fee (from Amazon's fee preview or the FBA rate card).
Open Advanced to set the referral % for your category and add storage/other costs.
Read your net profit, margin, and ROI with the full fee breakdown below.
Use the reverse calculator to find the price that hits a target margin %.

How to embed this tool on your website

No account, no coding. Copy the embed code and paste it where you want it to appear:

<iframe src="https://snaptoolsuite.com/amazon-fba-calculator/?embed=1"
  style="width:100%;max-width:560px;height:1050px;border:0;"
  title="Amazon FBA Calculator" loading="lazy"></iframe>
<p>Free <a href="https://snaptoolsuite.com/amazon-fba-calculator/">Amazon FBA Calculator</a> by Snap Tool Suite</p>

2 Paste it on your page

3 It just works

See it live: view a real embed example →

Frequently asked questions

How much does Amazon FBA take per sale?

A referral fee (~15% for most categories) plus a per-unit FBA fulfillment fee based on size and weight, and optional storage. This calculator totals them with your costs.

Does it calculate ROI?

Yes — it shows profit, margin, and ROI (profit ÷ your product + inbound cost) so you can judge a product before sourcing.

Is it really free?

Yes. 100% free, everything runs in your browser.

Price a product to sell

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🔒 Everything is calculated in your browser. We don't store or sell your data.