Calculate all Amazon fees, FBA costs & your net profit — live as you type.
Selling on Amazon through Fulfillment by Amazon (FBA) is one of the most popular e-commerce business models in 2026. However, understanding Amazon's complex fee structure is critical to profitability. Many new sellers are shocked to discover that Amazon takes 30-40% of your selling price in fees and costs when you factor in referral fees, FBA fees, storage, and advertising.
Our free Amazon FBA calculator helps you see the complete breakdown before you source products, so you can make data-driven decisions and avoid unprofitable products. The calculator uses the current 2026 fee structure and gives you instant profit calculations.
Amazon charges sellers multiple fees on every sale:
When you add it all up, a product selling for $30 with $8 product cost might only net you $8-12 profit after all fees. That's why using our Amazon FBA calculator before sourcing products is essential.
Profitable Amazon sellers use this formula: Selling Price - Product Cost - Shipping to Amazon - Referral Fee - FBA Fee - Storage Fee - Advertising = Net Profit
For example, if you sell a wireless charger for $25:
Our calculator does all this math instantly. Just enter your numbers and see your profit in real-time.
Yes, but it's more competitive than ever. The key to profitability is product selection. Successful sellers look for products where:
Use our calculator to test different scenarios. If your net profit margin is below 20%, the product is likely too competitive or you need to negotiate better supplier pricing.
FBA (Fulfillment by Amazon) means Amazon handles storage, picking, packing, and shipping. FBM (Fulfillment by Merchant) means you handle everything yourself.
FBA Pros: Prime eligible (huge conversion boost), hands-off fulfillment, Amazon handles customer service, multi-channel fulfillment available.
FBA Cons: Higher fees, less control over shipping speed, storage limits, long-term storage fees if products don't sell.
FBM Pros: Lower fees, full control, no storage fees, better for large/heavy items.
FBM Cons: Not Prime eligible (lower conversion), you handle everything, harder to scale.
Most successful sellers use FBA for their main products and FBM for oversized items or backup inventory.
Beyond the standard fees, Amazon charges several fees that catch sellers off guard:
Always factor these potential costs into your calculations. Our calculator includes storage fees to help you avoid surprises.
Advertising is essential on Amazon in 2026. Without it, your products won't get visibility. Here's what to budget:
Our calculator includes advertising costs so you can see your true net profit after all expenses.
Example 1: Wireless Mouse ($29.99)
Product cost: $8 | Shipping: $1.50 | Referral: $4.50 | FBA: $3.68 | Storage: $0.50 | PPC: $3
Net profit: $9.31 (31% margin) ✅ Good product
Example 2: Phone Case ($12.99)
Product cost: $2 | Shipping: $0.50 | Referral: $1.95 | FBA: $3.06 | Storage: $0.30 | PPC: $1.50
Net profit: $3.68 (28% margin) ✅ Okay but competitive
Example 3: Large Dog Bed ($49.99)
Product cost: $18 | Shipping: $5 | Referral: $7.50 | FBA: $12.50 | Storage: $2.50 | PPC: $5
Net profit: -$0.51 (negative!) ❌ Don't sell this
See why the calculator is essential? Always test products before committing inventory.
These are the most common questions from Amazon FBA sellers on Reddit, Quora, and seller forums.
Amazon charges a referral fee of 8-15% depending on category (most are 15%), plus FBA fulfillment fees starting at $3.06 for standard items. Total Amazon fees typically range from 25-35% of selling price when you include storage and advertising.
Yes, but it requires smart product selection. Aim for products where your cost is 25% or less of selling price, weight under 2 lbs, and selling price $15-50. Use our calculator to ensure at least 20% profit margin after all fees.
FBA fulfillment fees start at $3.06 for small standard items (up to 1lb) and increase based on size and weight. For a typical 1-2lb item, expect $3.68-$4.75 in FBA fees per unit.
Profit = Selling Price - Product Cost - Shipping to Amazon - Referral Fee - FBA Fee - Storage Fee - Advertising. Use our free Amazon FBA calculator for instant profit calculation with all fees included.
Beyond standard fees, watch for: long-term storage fees ($6.90/cu ft for 365+ day inventory), removal fees ($0.50-2/unit), returns processing fees, and unplanned prep service fees ($0.50-2/unit). Always budget for these.
FBA is better for most sellers because products get Prime eligibility (huge conversion boost) and Amazon handles fulfillment. FBM is better for large/heavy items where FBA fees are prohibitive, or if you can ship faster/cheaper than Amazon.
New sellers should budget 10-15% of revenue for PPC initially. As you optimize campaigns, aim for 8-12% ACoS (Advertising Cost of Sales). Established products often run at 5-8% ACoS.
A good profit margin on Amazon FBA is 15-25% after all fees. Many successful sellers aim for at least 30% gross margin before advertising costs. Use our calculator to ensure your product hits these targets before sourcing.