Using our free tool is simple and takes less than a minute. Just enter a few key details about your product and the calculator will show you your estimated profit, ROI, and margin,  based on the latest 2025 Amazon FBA fees.

Start by typing in your product’s selling price and cost of goods sold. Then fill in its size, weight, and select the appropriate product category. If you’re not sure which category to choose, pick the one that most closely matches what you plan to sell. You can also click “Advanced Costs” to enter optional freight and packing costs.

Once you’ve entered your info, click “Calculate.” The results will appear instantly, including:

• Estimated profit per unit

• ROI (Return on Investment)

• Profit margin

• A breakdown of the estimated Amazon fees deducted

You can also use the price adjustment slider to quickly test how small price changes will impact your profit.

Note: This calculator is designed to give you a strong starting estimate, but it doesn’t factor in things like advertising spend, returns, or additional FBA costs like the Aged Inventory Surcharge or Inbound Placement Fees. Always use your final numbers to make accurate decisions before ordering inventory or launching a product.

How This Calculator Works

Once you hit “Calculate”, the tool runs a set of checks using Amazon’s latest fee tables, applies the right fee rules for your product, and then calculates profit, margin, and ROI in real time.

Step 1: Enter product and costs

Choose your product category, selling price, COGS, and size details (weight and dimensions). If you want a full landed cost, you can also add freight, duties, and prep by toggling the “Advanced Costs” tab.

Step 2: Size tier and fees

The tool will then take all of your product dimensions and assign the correct Amazon size tier (Small Standard, Large Standard, Large Bulky, or Extra-Large). It then applies the matching fulfillment fee using the size tier and your products weight. This same information is used to estimate your monthly storage rates for both off-season (Jan–Sep) and peak (Oct–Dec).

At the same time, the calculator will add the correct referral fee based on your category and price, and it will also determine if your product qualifies for Amazon’s Low-Price FBA rates.

Step 3: Profit, margin, and ROI

Finally, the calculator runs the three core numbers most important for validating potential products:

• Profit per unit = Price − (Landed cost + Fulfillment + Referral fees)
• Margin % = Profit ÷ Price × 100
• ROI % = Profit ÷ Landed cost × 100

Margins above 30% are generally considered strong, while an ROI over 80% is also a good target for a successful product.

The results appear in color-coded cards so you can spot them quickly. Red signals that the product doesn’t meet the recommended metrics, yellow is borderline, and green to emerald signals that the product meets the recommendations.

Step 4 (Optional): Test different prices

Once you calculate, a price slider appears so you can model new prices in real time. If your item is $40 or less, the slider covers about plus or minus $5. For higher-priced products, it shows a range from half to one and a half times your base price.

To evaluate profitability, start by estimating all your direct costs—product cost, shipping to Amazon, and Amazon’s FBA fees. Subtract those from your target selling price to find your net profit per unit.

Then use these two formulas:

• Profit Margin (%) = (Profit ÷ Selling Price) × 100

• ROI (%) = (Profit ÷ Product Cost) × 100

These numbers will help you compare products apples-to-apples and decide what’s worth pursuing. If you’re just starting out, focus on products with enough margin to absorb ad costs and price drops. You can use the calculator on this page to instantly test your numbers before placing an order.

A healthy profit margin for private-label products on Amazon is 30–40%. This range gives you the flexibility to handle rising Amazon fees, discounts, and PPC costs without sacrificing your earnings. I recommend avoiding products with margins below 25%, especially if you’re still building your brand or operating with low volume.

A strong ROI (Return on Investment) for Amazon FBA is between 80% and 100%. This means for every $1 you invest in product cost, you should earn back $1.80 to $2.00. I don’t list anything that comes in under 50% ROI, unless it’s part of a proven high-volume strategy or has exceptional competitive advantages.

Amazon offers a special Low-Price FBA rate for products priced at $10 or less, which reduces your fulfillment fees by approximately $0.77 per unit compared to the standard rates. This lower fee applies to all standard-size categories and is meant to encourage more affordable product listings. However, once your price goes above $10, standard FBA fees automatically apply—even by a penny.

This calculator includes the three core FBA fees that impact your profitability:

• Fulfillment Fees (based on size and weight)

• Referral Fees (Amazon’s selling commission)

• Monthly Storage Fees (standard and peak season rates)

Advanced FBA fees like inbound placement fees, aged inventory surcharges, and returns processing are not factored in. I intentionally kept it focused on the major fees so new sellers can quickly see whether a product is worth pursuing.

Using the FBA Profit Calculator is just the start. Whether you’re launching your first product or optimizing an existing listing, here are some next steps to help you grow:

• Free Amazon Image Checker Tool: See if your product images meet Amazon’s requirements and best practices. Just drop in an image to see if it’s the correct dimensions, type, file size, and more.

• How to Start an Amazon FBA Business in 2025: Not sure where to start? Learn the basics of starting your own Amazon business with our complete beginner’s guide.

• Brand Registry on Amazon: A Comprehensive Guide: Protect your listings and unlock powerful brand-building tools by enrolling in Amazon’s Brand Registry. We go over each step and all of the benefits this powerful free program offers.

• 19 Best Tools for Amazon FBA in 2025 (Free & Paid): Check out our recommendations for the top Amazon tools for every aspect of your business. Learn about the best keyword tools, product research tools, inventory software, and more.

• Amazon Ads Search Term Report Analyzer: Upload your Search Term Report to instantly find your winning keywords, unprofitable keywords, and spot duplicate search terms. Completely free to use in your browser.

• Amazon A+ Content: Everything You Need to Know: Learn how to improve your listing’s visuals and conversion rate by creating your own A+ Content.

• Amazon FBA Product Research: A Step by Step Guide: Take your product research to the next level. Learn the basics of finding a potential private-label product to sell on Amazon.