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Both calculators run independently — change the inputs on either side to compare results.

Profit Margin Calculator

Find your true net profit margin after accounting for cost of goods, fixed costs per unit, and taxes. Use it when pricing products or evaluating whether a SKU is actually profitable.

Cost of Goods Sold ($)

Selling Price ($)

Fixed Costs per Unit ($)

Tax Rate (%)

Fill in the required fields to see your result.

Ecommerce

Amazon FBA Fee Calculator

Estimate your net profit on Amazon FBA products by accounting for referral fees, fulfillment costs, and product expenses. Use it before sourcing to vet margin viability.

Selling Price ($)

Product Cost ($)

Product Category

Product Weight (lbs)

Package Volume (cubic inches)

Fill in the required fields to see your result.

Key differences

	Profit Margin Calculator	Amazon FBA Fee Calculator
Category	Ecommerce	Ecommerce
Inputs required	4	5
Result	Net Profit Margin (%)	Net Profit ($)
What it does	Find your true net profit margin after accounting for cost of goods, fixed costs per unit, and taxes. Use it when pricing products or evaluating whether a SKU is actually profitable.	Estimate your net profit on Amazon FBA products by accounting for referral fees, fulfillment costs, and product expenses. Use it before sourcing to vet margin viability.