Amazon FBA Profit Calculator (2026)
100% client-side. Modeling uses USD and the EC-002 2026 Q2 excerpt.
Move sliders to model landed cost vs Amazon referral and FBA fulfillment. Storage fees and dimensional weight billing are omitted in v1.
Net profit / unit
$16.53
Net margin %
55.1%
Monthly profit
$1,653
FBA fee
$3.06
Std ladder
Referral fee
$2.40
Cumulative profit at your monthly pace
| Horizon | Cumulative profit |
|---|---|
| 1 months | $1,653 |
| 3 months | $4,959 |
| 6 months | $9,918 |
| 12 months | $19,836 |
Referral = max($0.30, price × 8%).
How does the Amazon FBA Profit Calculator work step by step?
The [OnSumo Amazon FBA Profit Calculator](/tools/ecommerce/amazon-fba-profit) calculates your net profit per unit sold through Amazon's Fulfillment by Amazon (FBA) program. You enter your product cost, selling price, and Amazon fees, and the calculator shows what you keep after all deductions. Amazon FBA sellers pay referral fees (a percentage of the selling price), FBA fulfillment fees (based on product size and weight), storage fees, and optional advertising costs. The calculator subtracts all these from your selling price to show your actual profit margin. The calculation starts with your selling price, deducts Amazon's referral fee (usually 15% of the price), subtracts FBA fulfillment and storage fees, subtracts your product cost (what you paid to manufacture or source the item), and subtracts any additional costs like shipping to Amazon or advertising. What remains is your net profit per unit.
When should you use the Amazon FBA Profit Calculator?
Use this calculator when evaluating a new product to sell on Amazon, deciding whether a product is profitable enough to add to your catalog, or testing different price points to maximize profit margin. You should also use it when Amazon changes its fee structure. Amazon updates FBA fees and storage rates each year, and a product that was profitable last year may no longer be profitable at the new rates. Recalculate margins whenever fees change. Sellers comparing Amazon FBA to self-fulfillment (FBM) should use this calculator to see the true cost of FBA. FBA fees are higher than self-fulfillment, but FBA includes Prime eligibility, customer service, and returns handling. The calculator shows whether the convenience is worth the cost.
How do you read the Amazon FBA Profit Calculator results?
The calculator shows your net profit per unit and your profit margin (net profit divided by selling price). If your profit margin is below 20%, the product may not be worth selling because one bad batch, a price war, or increased fees can wipe out your profit. A healthy FBA profit margin is 30% to 50% after all fees and costs. If your margin is lower, consider increasing your selling price, finding a cheaper supplier, or choosing a different product. If your margin is higher than 50%, you have room to invest in advertising or price competitively. The calculator also shows your breakeven price: the minimum selling price at which you make zero profit. If competitors are selling below your breakeven price, the product is not viable for you unless you can reduce costs.
What does a typical Amazon FBA Profit Calculator result look like?
An FBA seller sources a product for $8 per unit and sells it for $30. The product is a standard-size item weighing 1 pound. Amazon fees are as follows: Referral fee: 15% of $30 = $4.50 FBA fulfillment fee: $3.50 (standard-size, 1 lb) Storage fee: $0.25 per unit per month (average) Advertising cost: $2 per unit Total costs: Product cost: $8.00 Amazon referral: $4.50 FBA fulfillment: $3.50 Storage: $0.25 Advertising: $2.00 Total: $18.25 Net profit: $30 - $18.25 = $11.75 per unit Profit margin: 39.2% This is a healthy margin. The seller can absorb a price drop or fee increase and still make money. If the seller removes advertising, profit increases to $13.75 per unit (45.8% margin).
Frequently asked questions
What fees does Amazon charge for FBA sellers?
Amazon charges a referral fee (usually 15% of the selling price, varies by category), an FBA fulfillment fee based on product size and weight, and monthly storage fees. Storage fees are higher during Q4 (October to December). Some categories also charge a closing fee. Use the [Amazon FBA profit calculator](/tools/ecommerce/amazon-fba-profit) to see the total fees for your product and selling price.
What is a good profit margin for Amazon FBA?
A healthy FBA profit margin is 30% to 50% after all fees and costs. Below 20%, you have little cushion for price drops, fee increases, or inventory issues. Above 50%, you have room to invest in advertising or price competitively. If your margin is below 20%, consider increasing your selling price, finding a cheaper supplier, or choosing a different product. The calculator shows your exact margin based on your inputs.
How do I calculate my FBA fulfillment fee?
FBA fulfillment fees are based on product size and weight. Amazon defines size tiers: small standard, large standard, small oversize, and so on. A small standard item under 1 lb costs around $3.00 to fulfill, while a large standard item over 3 lb costs $5.00 or more. Check Amazon's FBA fee schedule for the current rates and measure your product dimensions and weight accurately. The [FBA profit calculator](/tools/ecommerce/amazon-fba-profit) applies the correct fee based on your product specs.
What is the breakeven price for an FBA product?
The breakeven price is the minimum selling price at which you make zero profit after all fees and costs. It includes your product cost, referral fee, FBA fees, storage, and any other expenses. If competitors are selling below your breakeven price, you cannot profitably sell that product unless you reduce costs. Use the calculator to find your breakeven price and compare it to the market price.
Should I use FBA or fulfill orders myself (FBM)?
FBA costs more per unit but includes Prime eligibility, customer service, and returns handling. FBM (Fulfillment by Merchant) is cheaper per unit but requires you to handle packing, shipping, and customer issues. Use FBA if you want to scale quickly, offer Prime shipping, or avoid logistics. Use FBM if your margins are tight or you can fulfill orders cheaper than Amazon. The calculator shows the FBA cost; subtract FBA fees to estimate FBM profit.
How much should I spend on Amazon PPC advertising per unit?
Advertising cost per unit sold depends on your product category, competition, and profit margin. A common target is 10% to 20% of the selling price for PPC. If your product sells for $30, aim for $3 to $6 in ad spend per unit sold (ACoS of 10% to 20%). If your margin is high, you can spend more. If your margin is tight, reduce ad spend or optimize your listings to rank organically. The [break-even ROAS calculator](/tools/marketing/break-even-roas) helps set ad spend targets.
What are Amazon storage fees and when do they increase?
Amazon charges monthly storage fees based on cubic feet of space your inventory occupies. Standard-size items cost around $0.75 per cubic foot per month from January to September, and $2.40 per cubic foot from October to December (Q4). Oversize items cost more. Long-term storage fees apply if inventory sits for more than 365 days. The [Amazon FBA profit calculator](/tools/ecommerce/amazon-fba-profit) includes storage fees in the total cost.
Can I sell on Amazon FBA with a low budget?
Yes, but start small. You can launch an FBA product with $1,000 to $2,000 if you source a low-cost item and order a small batch (100 to 200 units). Test the product before ordering large quantities. If it sells well and has a healthy margin, reinvest profits into larger orders. Use the calculator to ensure your margin is high enough to cover fees and still make a profit on small orders.
What happens if my product does not sell on Amazon?
Unsold inventory incurs monthly storage fees and eventually long-term storage fees if it sits for over 365 days. You can remove the inventory and have it shipped back to you, or you can have Amazon dispose of it. Both options have fees. To avoid this, test products with small batches first, and use the calculator to ensure the margin justifies the risk. If a product is not selling, run a discount or liquidation sale to clear inventory.
How do I find a profitable product to sell on Amazon?
Look for products with steady demand, low competition, and a selling price that allows a 30% to 50% margin after FBA fees. Use tools like Jungle Scout or Helium 10 to research product demand and competition. Source the product from Alibaba or other suppliers, calculate your landed cost (product cost plus shipping to Amazon), and use the [Amazon FBA profit calculator](/tools/ecommerce/amazon-fba-profit) to see if the margin works. If the margin is too low, find a different product or a cheaper supplier.