Amazon marketplace economics tool

Amazon FBA Profit Calculator

Estimate Amazon FBA profit per unit after landed cost, referral fee, fulfillment, prep/storage, returns allowance and advertising.

Use your actual Amazon fee values: referral, fulfillment, storage and other seller fees vary by marketplace, category, size, weight and program. This calculator is intentionally editable rather than assuming one universal Amazon rate.

Unit Economics

⚡ Real-time update
$
$

Use your true landed cost per unit if available.

%
$
Other Per-unit Costs
$
$
$
%
$
Net Profit / Unit
$0.00
Net Margin
0.0%
ROI
0.0%
Break-even CPA
$0.00
Landed Product Cost:$0.00
Referral Fee:$0.00
FBA Fulfillment:$0.00
Storage/Prep + Inbound:$0.00
Returns Reserve:$0.00
Amazon Ads CPA:$0.00
Other Amazon Cost:$0.00
Total Cost / Unit: $0.00
Planning estimate. Verify your actual Amazon seller fees, FBA fees and storage/placement charges before relying on the result.

How the Amazon FBA Profit Calculator Works

The calculator subtracts landed product cost, referral fee, FBA fulfillment, storage/prep, inbound costs, returns allowance, ads and other entered costs from selling price to estimate profit per unit.

Why Amazon Fee Inputs Stay Editable

Amazon fees can vary by marketplace, category, dimensions, weight, storage period and seller program. Editable fields make the calculator useful without pretending one set of fees applies to every product.

ROI vs Margin

Margin compares profit with selling price. ROI compares profit with the cost basis invested in the unit. Sellers often track both because a product can have a reasonable margin but still tie up too much capital for the return it generates.

Example: if a $39.99 product has $12.40 landed cost, a 15% referral fee, $4.75 FBA fee and $6 ad CPA, the remaining margin depends heavily on the smaller storage, returns and inbound costs too.

Frequently Asked Questions

Is the referral fee always 15%?

No. Categories and marketplaces can use different referral rates. Replace the example value with the rate that applies to your listing.

Does the calculator know my exact FBA fulfillment fee?

No. Enter the per-unit FBA fee shown for your product size, weight and marketplace.

Should I include Amazon PPC?

Include an expected advertising CPA if paid Amazon traffic is part of your normal sales economics. Set it to zero to view pre-ad profit.

What should I use for landed product cost?

Use the true per-unit cost after supplier price, freight, duty and other inbound costs you want capitalized into inventory. The Landed Cost Calculator can help estimate it.