Amazon Profit Calculator
This Amazon profit calculator answers the only question that matters for FBA sellers: what do you keep per unit? It applies the full October 2026 FBA fee stack — category referral fee, size-tier fulfillment fee, 3.5% fuel surcharge, storage estimate and plan fee — then subtracts your product cost and inbound shipping to Amazon. The result is true net profit per unit and margin, so you can compare products, test price points, and spot listings that look profitable but are not.
Your Amazon list price.
Referral is charged on the sale price.
Your exact size-tier fee from Seller Central.
≈ $0.78/cu ft Jan–Sep, $2.40/cu ft Oct–Dec — your per-unit share.
Per-item plan fee only; the monthly fee is separate.
Landed manufacturing or wholesale cost per unit.
Freight to the Amazon fulfillment center, per unit.
Net profit per unit
9.92
- Total Amazon feesReferral + fulfillment + fuel + storage + plan.
- 10.87
- Product cost
- 8
- Inbound shipping
- 1.2
- Total cost per unit
- 20.07
- Profit marginNet profit as a share of the sale price.
- 33.09%
How it was calculated
- Amazon fees: $4.50 referral + $5.40 fulfillment + $0.19 fuel + $0.78 storage + $0.00 plan = $10.87.
- Your costs: $8.00 product + $1.20 inbound = $9.20.
- Profit: $29.99 − $20.07 = $9.92 (33.1% margin).
How it works
Net profit = sale price − (referral + fulfillment + 3.5% fuel surcharge + storage + plan fee) − product cost − inbound shipping.
Referral = category rate × sale price: 8% electronics, 15% most categories, 17% clothing, 20% jewelry.
Margin = net profit ÷ sale price × 100. Experienced FBA sellers usually want 25–35%+ margin to absorb returns, ads, and price wars.
Inbound shipping is the forgotten line — freight to the FC is a real per-unit cost that belongs in profit math, not in overhead.
Worked examples
$29.99 product with $8 landed cost
Fees: $4.50 referral + $5.40 fulfillment + $0.19 fuel + $0.78 storage = $10.87. Costs: $8.00 + $1.20 inbound = $9.20. Net profit = $29.99 − $20.07 = $9.92 per unit, a 33.1% margin.
$19.99 small product, tight math
Fees: $3.00 referral + $3.22 fulfillment + $0.11 fuel + $0.78 storage = $7.11. Costs: $5.00 + $0.80 = $5.80. Net profit = $19.99 − $12.91 = $7.08 (35.4% margin) — small products can work when the fulfillment tier is genuinely small.
How to measure
- Use landed product cost: unit price + freight + duties + inspection, divided by good units received.
- Measure inbound per unit from real shipments — small-parcel inbound can exceed $1.50/unit on heavy items.
- Test margin at your likely promo price, not just list price; coupons and deals come out of profit.
- Add a returns reserve mentally: categories with 8–12% return rates need several extra margin points.
- Re-run before every inventory order — supplier quotes and freight rates move faster than Amazon fees.
Assumptions & limitations
Planning estimate
- Fee rates as published October 2026 — verify current rates before pricing decisions.
- Inbound placement fees ($0.27–$1.58/unit), aged-inventory surcharges, returns fees, and PPC ad spend are not included.
- The $39.99/mo Professional plan fee is excluded from per-unit math; divide by monthly units for all-in cost.
- Holiday peak fulfillment fees (Oct 15, 2026 – Jan 14, 2027) are not modeled.
- Results are a planning estimate only, not tax or financial advice.
Frequently asked questions
Aim for 25–35%+ net margin after all fees and landed costs. That cushion absorbs returns (which cost you the fulfillment fee both ways on many categories), PPC spend (often 8–15% of revenue for new listings), and inevitable price competition. Products under 15% margin rarely survive their first price war.
Yes — or as its own line, as this calculator does. Freight to the fulfillment center is a true per-unit cost, and on heavy or bulky products it can rival the product cost itself. Sellers who bury it in overhead consistently overestimate FBA profit by $1–3 per unit.
Amazon refunds the referral fee on returned items but generally keeps the fulfillment fee, and you may pay return processing. A 10% return rate effectively adds roughly a tenth of your fulfillment cost back onto every unit sold. High-return categories (apparel, shoes) need materially higher starting margins.
It depends on size, weight, and your shipping rates. FBA wins on Prime badge conversion and hands-off logistics; FBM wins when your own fulfillment is cheap (light items, negotiated carrier rates). Compare this calculator’s FBA profit against your FBM cost using the Amazon seller fee calculator for the referral-only side.