What is the Amazon referral fee?

Amazon charges a referral fee on every sale — a percentage of the total selling price (including any shipping charged to the customer). Rates vary by category: typically 8% for electronics, 15% for most categories, and up to 20% for jewelry. This fee is the largest Amazon cost for most sellers.

What is the FBA fulfillment fee?

The FBA fulfillment fee covers Amazon picking, packing, and shipping your product to the customer. It is based on the product's size tier and weight. Small standard items (under 16 oz) start around $3.06, while oversized items can be $9–$90+. Find your exact fee in Amazon's FBA fee schedule or the FBA Revenue Calculator.

What is a good profit margin for Amazon FBA?

Most successful FBA sellers target a net margin of 20–30%+ and an ROI of 50–100%+ per unit. A margin below 10% is generally considered too thin after accounting for returns, fee changes, and competition. Margins above 30% offer a strong buffer and room to run profitable PPC campaigns.

How do I find my FBA fee?

Use Amazon's FBA Revenue Calculator (available in Seller Central) and enter your product's ASIN or dimensions/weight. The calculator shows the exact FBA fulfillment fee for your product. Alternatively, Amazon publishes a detailed FBA fee schedule by size tier and weight that you can reference.

Should I include PPC costs in my profit calculation?

Yes, absolutely. PPC (pay-per-click advertising) is a real cost of selling on Amazon and should always be included in your unit economics. A product may appear profitable before PPC but lose money once advertising spend is factored in. Use your actual ACoS (Advertising Cost of Sales) or estimated CPC to calculate per-unit ad spend.

Does this calculator include Amazon's closing fee or variable closing fee?

Variable closing fees apply specifically to media products (books, music, video, video games, software, and video game consoles) sold in the US — currently $1.80 per unit. If you sell media products, add this to the 'Other Fees' field. For non-media products, there is no variable closing fee.

Amazon FBA Profit Calculator

Enter your product's selling price, costs, and Amazon fees to instantly calculate net profit, margin, and ROI — before you source a single unit.

Revenue

Selling Price

Product Category

15%

Amazon charges a % of the selling price as referral fee

Costs & Fees

Product Cost (COGS)

Manufacturing + sourcing cost per unit

FBA Fulfillment Fee

Pick, pack & ship fee per unit — find yours in Amazon's FBA fee schedule

Inbound Shipping per Unit

Your cost to ship inventory to Amazon's warehouse

Monthly Storage Fee per Unit

Amazon storage cost per unit per month

PPC / Advertising Cost per Unit

Estimated ad spend per unit sold

Other Fees per Unit

Prep fees, returns, misc costs

Net Profit

$11.17

Great margin

Profit Margin

37.3%

ROI

126.9%

Selling Price$29.99

− Referral Fee$4.50

− FBA Fulfillment Fee$3.22

− Product Cost$8.00

− Inbound Shipping$0.80

− Storage Fee$0.30

− PPC Cost$2.00

Total Costs$18.82

Break-Even Price

$16.85

Minimum selling price to cover all costs

Calculate Amazon FBA Profit Before You Source

Knowing your profit margin before ordering inventory is the single most important step in Amazon FBA. Zolkit's FBA calculator includes Amazon's category-specific referral fees, FBA fulfillment costs, inbound shipping, storage, PPC spend, and COGS — giving you an accurate net profit, margin, and ROI in seconds.

Category Referral Fees Built In

Select your product category and the referral fee percentage is automatically applied — from 8% for electronics to 20% for jewelry, matching Amazon's 2024 fee schedule.

Instant Calculation

All figures update as you type. No submit button, no page load. Adjust any input and see the impact on profit and ROI immediately.

Full Cost Breakdown

See every cost as a dollar amount and percentage of selling price — referral fee, FBA fee, shipping, storage, PPC, and COGS — so you know exactly where your money goes.

ROI & Break-Even

Beyond margin, the calculator shows ROI (net profit ÷ total investment) and the break-even price — the minimum you must charge to cover all costs.

100% Private

All calculations happen in your browser. No product data, prices, or business information is ever sent to a server.

Completely Free

No account, no subscription, no watermarks. Calculate as many products as you need.

How to Calculate Your FBA Profit

1
Enter your selling price and select your product category. The referral fee percentage is automatically filled in based on Amazon's current fee schedule.
2
Enter your FBA fulfillment fee (from Amazon's FBA Revenue Calculator or fee schedule), product cost, and any inbound shipping, storage, or PPC costs.
3
Read your net profit, margin, and ROI instantly. Use the break-even price to understand your pricing floor before negotiating with suppliers.