Is the Amazon FBA profit calculator free?

Yes. The calculator runs entirely in your browser with no login, email, or signup. Nothing is sent to a server.

How is FBA net profit per unit calculated?

Net profit = sale price − COGS − referral fee − FBA fulfillment fee − inbound shipping − other costs. The referral fee is your sale price multiplied by the referral percentage (15% for most categories).

What is a healthy Amazon FBA net margin?

Most private-label sellers aim for 15–30% net margin after all Amazon fees but before ad spend, leaving room for advertising while staying profitable.

Is the Amazon FBA profit calculator free?

Yes. The calculator runs entirely in your browser with no login, email, or signup. Nothing is sent to a server.

How is FBA net profit per unit calculated?

Net profit = sale price − COGS − referral fee − FBA fulfillment fee − inbound shipping − other costs. The referral fee is your sale price multiplied by the referral percentage (15% for most categories).

What is a healthy Amazon FBA net margin?

Most private-label sellers aim for 15–30% net margin after all Amazon fees but before ad spend, leaving room for advertising while staying profitable.

Free tool

FBA Profit Worksheet.

Know your true unit economics before you launch or restock. Enter your costs to see net profit, margin, and ROI after every Amazon fee.

// Inputs

Your Unit Economics

Sale Price ($)

What the customer pays before coupons.

Product Cost / COGS ($)

Manufacturing + prep cost per unit.

Referral Fee (%)

Amazon's category cut. 15% for most categories.

FBA Fulfillment Fee ($)

Pick/pack/ship fee from your ASIN fee preview.

Inbound Shipping / Unit ($)

Freight to Amazon, per unit. Optional.

Other Costs / Unit ($)

Returns reserve, storage, misc. Optional.

// Results

Profitability Results

Net Profit / Unit$11.59

What you keep per unit after every Amazon fee, before ad spend.

Net Margin38.7%

Return on Cost (ROI)136.4%

Total Amazon Fees / Unit$9.90

Healthy margin

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