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Amazon FBA Profit Calculator

Estimate your real per-unit profit, margin, and ROI selling through Amazon FBA, factoring in referral fees, FBA fulfillment fees, advertising, and returns.

Per-unit economics

$
$

Sets a starting referral fee estimate below, directional only, adjust it if you know your exact rate.

%

Use Amazon's FBA revenue calculator or your Seller Central account for the exact figure for this product's size tier and weight.

$
$

Optional.

$

Optional: per-unit share of monthly storage cost.

$

Optional: advertising & returns

%
%

Your result

Profitable

Profit per unit

$6

Margin

20.33%

ROI

64.21%

Profit waterfall

Selling price$30
Referral fee-$5
FBA fee-$6
COGS-$8
Inbound shipping-$2
Advertising-$3
Returns-$1
Net profit / unit$6

What this means

At this selling price, this product covers every cost you entered and returns a profit on each unit sold.

What to look at next

  • Double-check your referral fee and FBA fee against Amazon's current published rates for this product's exact category and size tier.
  • Add expected monthly units above to see an annual profit projection.
  • If margin is thin, advertising and returns are usually the two levers with the most room to improve.
How we calculated this
Net profit / unit
Selling price − referral fee − FBA fee − COGS − shipping − prep & labeling − storage − advertising − returns
Margin
Net profit / unit ÷ selling price
ROI
Net profit / unit ÷ (COGS + shipping + prep & labeling + storage)
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  • Conservative, expected, and optimistic scenario comparison
  • Annual profit projection
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How this is calculated

Net profit / unit
Price − Referral fee − FBA fee − COGS − Inbound − Prep − Storage − Advertising − Returns
Margin %
Net profit ÷ Selling price
ROI %
Net profit ÷ Total landed product cost

The referral fee percent shown by product category is a directional starting point, not Amazon's published rate for your exact sub-category. The FBA fulfillment fee is entered directly rather than estimated from dimensions/weight here: pull the exact figure from Amazon's own FBA revenue calculator or your Seller Central account for this specific product's size tier.