Amazon FBA Profit Calculator
Example: Selling price: 30 $ · Product cost (landed): 8 $ · Amazon referral fee: 15 % · FBA fulfillment fee per unit: 5.5 $ · Inbound shipping per unit: 1 $
| Net profit per unit | $11 |
| Total fees per unit | $11 |
| Profit margin | 36.67% |
| Return on product cost | 137.50% |
Worked example
Sell a product at $30 that costs you $8 landed. Amazon takes a 15% referral fee ($4.50), a $5.50 FBA fee, and $1 of inbound shipping, for $11 in fees. Net profit is $30 minus $8 minus $11, which is $11 per unit, a 36.7% margin and a 137.5% return on the $8 product cost. That fee load, over a third of the price, is why FBA pricing has to be modeled, not guessed.
Frequently asked questions
How is the Amazon referral fee determined?
It is a percentage of the sale price that varies by category, commonly 8 to 15%, with some categories higher. Check the referral fee for your specific category rather than assuming a flat rate.
What is the FBA fulfillment fee?
It is a per-unit fee Amazon charges to pick, pack, and ship your product, based on size and weight. Larger and heavier items cost more, which can quietly erode margins on bulky goods.
What costs are not included here?
Long-term storage fees, returns, advertising (PPC), and account subscription costs are not in this per-unit view. Factor them into your overall margin, since they can meaningfully reduce real profit.
What margin should I aim for?
Many FBA sellers target at least a 25 to 35% margin and a strong return on cost to absorb advertising and returns. A product that only breaks even after fees leaves no room for the costs this per-unit view omits.