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Amazon FBA Profit Calculator

Amazon fees are multilayered and often surprise sellers. This calculator computes your net profit, margin, and algebraic break-even price based on unit cost, inbound freight, category referral fee (as a percentage or fixed amount), and FBA fulfillment charges.

Amazon FBA Profit Calculator

Model referral commissions, FBA fulfillment charges, storage, and algebraic break-even pricing.

Marketplace note: Estimate only. Verify rates in your own Amazon Seller Central (FBA Fee Schedule) account. Fee schedules and tax regulations are updated periodically by each platform.
$

Final listing price on Amazon

$

Unit manufacturing / wholesale cost

$

Freight / carrier prep per unit

$

Pick & pack fee based on size tier

%

Amazon category commission rate

$

Per-unit inventory storage cost

$

Returns processing, disposal, advertising

Unit Economics & Profitability
Net Profit Per UnitProfit
$14.90
Selling price minus all product & FBA costs
Profit Margin
42.57%
(Net Profit / Selling Price) × 100
Break-Even PriceBenchmark
$17.47
Fixed Costs / (1 - Referral %)
Total Amazon FeesAmazon Cut
$10.60
Referral: $5.25 + FBA: $4.50

Amazon FBA Economics & Break-Even Formulas

1. Category Referral Fee
Referral Fee = Selling Price × (Referral % / 100)

Amazon's category commission on the gross customer purchase price.

2. Total Landed Cost per Unit
Total Cost = COGS + Inbound Shipping + Referral Fee + FBA Fulfillment + Storage

Full unit cost including supplier manufacturing, carrier freight, and Amazon fulfillment.

3. Net Unit Profit & Margin
Net Profit = Selling Price - Total Cost | Margin = (Net Profit / Price) × 100

True cash margin retained on each fulfilled order.

4. Algebraic Break-Even Selling Price
Break-Even Price = Unit Fixed Costs / (1 - (Referral % / 100))

Computes the minimum price required to cover all costs, algebraically factoring in the proportional increase in referral fee.

Worked Example: Home Kitchen Accessory via FBA

You sell a kitchen utensil set on Amazon for $32.00. Your manufacturing cost is $7.50, sea freight to Amazon is $1.50, Amazon referral fee is 15%, FBA pick & pack is $4.75, and storage/returns add $0.75.

Input Values
Amazon Selling Price:
$32.00
Manufacturing Cost (COGS):
$7.50
Inbound Freight:
$1.50
Referral Commission:
15% ($4.80)
FBA Pick & Pack Fee:
$4.75
Calculated Output
Total Amazon Deductions:
$10.30
Net Profit per Unit:
$12.70
Net Profit Margin:
39.69%
Algebraic Break-Even Price:
$17.06
Breakdown: Total Amazon fees equal $4.80 (referral) + $4.75 (FBA) + $0.25 (storage) + $0.50 (other) = $10.30. Adding $9.00 in product and freight gives total unit costs of $19.30. Net profit is $32.00 - $19.30 = $12.70 (39.69% margin). Unit fixed costs are $14.50. Dividing by (1 - 0.15 = 0.85) yields a break-even price of $17.06.

Frequently Asked Questions

What is an Amazon referral fee?
The referral fee is Amazon's commission on each item sold, typically ranging from 8% to 15% depending on the product category. Most general categories incur a 15% referral fee.
How is the algebraic break-even selling price computed?
Break-even price is calculated as Fixed Costs Per Unit / (1 - Referral Fee %). This accounts for the fact that referral fees increase proportionally with selling price, ensuring all unit costs (COGS, shipping, FBA fees, storage) are fully covered at break-even.
What happens if the referral fee equals or exceeds 100%?
If the referral fee is 100% or greater, the denominator (1 - Referral Fee %) becomes zero or negative, making break-even pricing mathematically impossible.
What should I include in 'Shipping to Amazon'?
Include the cost per unit for freight shipping from your supplier or prep center to Amazon's fulfillment centers (FBD/FBA inbound shipping via partnered carriers).

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