Amazon Fulfillment Calculator

Amazon FBA Profitability Calculator

Use this calculator to estimate your potential Amazon FBA fees, costs, and profit margin for a single product. Input your product details, and the calculator will provide an estimated breakdown of Amazon's referral, fulfillment, and storage fees, along with your net profit and profit margin.

Product & Cost Details

Product Dimensions & Weight

Enter the exact dimensions and weight of your product (including packaging).

Storage Details

October – December (Peak) January – September (Off-Peak)

function calculateFBAFees() { // Get input values var sellingPrice = parseFloat(document.getElementById("sellingPrice").value); var productCost = parseFloat(document.getElementById("productCost").value); var shippingToAmazon = parseFloat(document.getElementById("shippingToAmazon").value); var referralFeePercent = parseFloat(document.getElementById("referralFeePercent").value); var productLength = parseFloat(document.getElementById("productLength").value); var productWidth = parseFloat(document.getElementById("productWidth").value); var productHeight = parseFloat(document.getElementById("productHeight").value); var productWeight = parseFloat(document.getElementById("productWeight").value); var storageMonth = document.getElementById("storageMonth").value; // Validate inputs if (isNaN(sellingPrice) || isNaN(productCost) || isNaN(shippingToAmazon) || isNaN(referralFeePercent) || isNaN(productLength) || isNaN(productWidth) || isNaN(productHeight) || isNaN(productWeight) || sellingPrice < 0 || productCost < 0 || shippingToAmazon < 0 || referralFeePercent < 0 || productLength < 0 || productWidth < 0 || productHeight < 0 || productWeight < 0) { document.getElementById("result").innerHTML = "Please enter valid positive numbers for all fields."; return; } // 1. Calculate Referral Fee var referralFee = sellingPrice * (referralFeePercent / 100); // 2. Calculate FBA Fulfillment Fee (Simplified Logic – illustrative rates) var fbaFulfillmentFee = 0; var sortedDims = [productLength, productWidth, productHeight].sort(function(a, b) { return a – b; }); var shortestSide = sortedDims[0]; var medianSide = sortedDims[1]; var longestSide = sortedDims[2]; var productWeightOz = productWeight * 16; // Convert lbs to oz var sizeTier = "Unknown"; // Small Standard-Size if (longestSide <= 15 && medianSide <= 12 && shortestSide <= 0.75 && productWeightOz <= 16) { sizeTier = "Small Standard-Size"; if (productWeightOz <= 6) { fbaFulfillmentFee = 3.22; } else if (productWeightOz <= 12) { fbaFulfillmentFee = 3.40; } else { // 12-16 oz fbaFulfillmentFee = 3.80; } } // Large Standard-Size else if (longestSide <= 18 && medianSide <= 14 && shortestSide <= 8 && productWeight 1) { fbaFulfillmentFee += Math.ceil(productWeight – 1) * 0.40; // Add $0.40 for each additional lb } } // Small Oversize else if (longestSide <= 60 && medianSide <= 30 && (longestSide + 2 * medianSide + 2 * shortestSide) <= 130 && productWeight 1) { fbaFulfillmentFee += Math.ceil(productWeight – 1) * 0.40; // Add $0.40 for each additional lb } } // Medium Oversize else if (longestSide <= 108 && (longestSide + 2 * medianSide + 2 * shortestSide) <= 130 && productWeight 1) { fbaFulfillmentFee += Math.ceil(productWeight – 1) * 0.40; // Add $0.40 for each additional lb } } // Large Oversize else if (longestSide <= 108 && (longestSide + 2 * medianSide + 2 * shortestSide) <= 165 && productWeight 1) { fbaFulfillmentFee += Math.ceil(productWeight – 1) * 0.40; // Add $0.40 for each additional lb } } // Special Oversize else { sizeTier = "Special Oversize"; fbaFulfillmentFee = 150.00; // Base fee if (productWeight > 90) { fbaFulfillmentFee += Math.ceil(productWeight – 90) * 0.80; // Add $0.80 for each additional lb over 90 lbs } } // 3. Calculate Monthly Storage Fee var volumeCubicFeet = (productLength * productWidth * productHeight) / 1728; // 1728 cubic inches in 1 cubic foot var monthlyStorageFeePerCubicFoot = 0; if (sizeTier.includes("Standard-Size")) { monthlyStorageFeePerCubicFoot = (storageMonth === "peak") ? 2.40 : 0.87; // Peak vs Off-Peak rates for standard } else { // Oversize monthlyStorageFeePerCubicFoot = (storageMonth === "peak") ? 1.40 : 0.56; // Peak vs Off-Peak rates for oversize } var monthlyStorageFee = volumeCubicFeet * monthlyStorageFeePerCubicFoot; // Calculate Totals var totalFBAFees = referralFee + fbaFulfillmentFee + monthlyStorageFee; var totalCosts = productCost + shippingToAmazon + totalFBAFees; var netProfit = sellingPrice – totalCosts; var profitMargin = (netProfit / sellingPrice) * 100; // Display Results var resultsHtml = "

Summary for " + sizeTier + " Product

"; resultsHtml += "Product Selling Price: $" + sellingPrice.toFixed(2) + ""; resultsHtml += "Cost of Goods Sold: $" + productCost.toFixed(2) + ""; resultsHtml += "Shipping to Amazon: $" + shippingToAmazon.toFixed(2) + ""; resultsHtml += "

---

"; resultsHtml += "Amazon Referral Fee (" + referralFeePercent.toFixed(1) + "%): $" + referralFee.toFixed(2) + ""; resultsHtml += "FBA Fulfillment Fee: $" + fbaFulfillmentFee.toFixed(2) + ""; resultsHtml += "Monthly Storage Fee: $" + monthlyStorageFee.toFixed(2) + ""; resultsHtml += "

---

"; resultsHtml += "Total Estimated FBA Fees: $" + totalFBAFees.toFixed(2) + ""; resultsHtml += "Total Estimated Costs: $" + totalCosts.toFixed(2) + ""; resultsHtml += "Estimated Net Profit: $" + netProfit.toFixed(2) + ""; resultsHtml += "Estimated Profit Margin: " + profitMargin.toFixed(2) + "%"; resultsHtml += "Note: FBA fees are estimates based on illustrative rates and simplified tier logic. Actual Amazon fees may vary based on exact product characteristics, current fee schedules, and other factors."; document.getElementById("result").innerHTML = resultsHtml; } .amazon-fulfillment-calculator { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: #f9f9f9; padding: 25px; border-radius: 10px; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1); max-width: 700px; margin: 30px auto; border: 1px solid #e0e0e0; } .amazon-fulfillment-calculator h2 { color: #232F3E; text-align: center; margin-bottom: 20px; font-size: 2em; } .amazon-fulfillment-calculator h3 { color: #333; margin-top: 25px; margin-bottom: 15px; border-bottom: 1px solid #eee; padding-bottom: 5px; font-size: 1.4em; } .amazon-fulfillment-calculator p { color: #555; line-height: 1.6; margin-bottom: 10px; } .calculator-inputs label { display: inline-block; width: 200px; margin-bottom: 10px; font-weight: bold; color: #444; } .calculator-inputs input[type="number"], .calculator-inputs select { width: calc(100% – 220px); padding: 10px; margin-bottom: 10px; border: 1px solid #ccc; border-radius: 5px; box-sizing: border-box; font-size: 1em; } .calculator-inputs input[type="number"]:focus, .calculator-inputs select:focus { border-color: #FF9900; outline: none; box-shadow: 0 0 5px rgba(255, 153, 0, 0.5); } .calculator-inputs button { background-color: #FF9900; color: white; padding: 12px 25px; border: none; border-radius: 5px; cursor: pointer; font-size: 1.1em; font-weight: bold; display: block; width: 100%; margin-top: 20px; transition: background-color 0.3s ease; } .calculator-inputs button:hover { background-color: #e68a00; } .calculator-results { background-color: #e6f7ff; border: 1px solid #b3e0ff; padding: 20px; border-radius: 8px; margin-top: 30px; } .calculator-results h3 { color: #0056b3; border-bottom: 1px solid #b3e0ff; padding-bottom: 10px; margin-top: 0; } .calculator-results p { margin-bottom: 8px; color: #333; } .calculator-results p strong { color: #000; } .calculator-results hr { border: none; border-top: 1px dashed #ccc; margin: 15px 0; } .calculator-results small { display: block; margin-top: 15px; color: #777; font-size: 0.85em; }

Understanding the Amazon FBA Profitability Calculator

Selling on Amazon through their Fulfillment by Amazon (FBA) program can be a highly profitable venture, but it comes with a complex fee structure. Understanding these fees is crucial for accurately pricing your products and ensuring healthy profit margins. Our Amazon FBA Profitability Calculator is designed to help you estimate these costs and determine your potential net profit and profit margin before you even send your first product to an Amazon warehouse.

What is FBA and Why Use This Calculator?

FBA allows sellers to store their products in Amazon's fulfillment centers. When a customer places an order, Amazon picks, packs, ships, and provides customer service for these products. This streamlines operations for sellers but involves various fees. Without a clear understanding of these costs, sellers risk underpricing their products, leading to losses, or overpricing, which can deter customers.

This calculator simplifies the process by taking your product's selling price, cost, dimensions, and weight, and then estimating the primary FBA fees you'll incur. It helps you:

• Estimate Profitability: Quickly see if a product is likely to be profitable after all Amazon fees.
• Optimize Pricing: Adjust your selling price to achieve desired profit margins.
• Understand Cost Breakdown: Get a clear view of how much goes to referral fees, fulfillment fees, and storage.
• Plan Inventory: Consider the impact of storage fees, especially during peak seasons.

Key FBA Fees Explained

The calculator focuses on the most significant FBA fees:

1. Amazon Referral Fee: This is a percentage of the product's selling price, charged by Amazon for referring the customer to your product. The percentage varies widely by product category (e.g., 8% for electronics, 15% for most categories, 45% for Amazon Device Accessories). Our calculator allows you to input the specific percentage for your product's category.
2. FBA Fulfillment Fee: This is the cost for Amazon to pick, pack, and ship your order to the customer. It's primarily determined by the product's size tier (e.g., Small Standard-Size, Large Standard-Size, Oversize) and its shipping weight. Larger and heavier items incur higher fulfillment fees. The calculator uses a simplified tier logic based on your product's dimensions and weight to estimate this fee.
3. Monthly Storage Fee: Amazon charges a fee for storing your inventory in their fulfillment centers. This fee is calculated based on the daily average volume (in cubic feet) your inventory occupies and varies by month. Storage fees are significantly higher during the peak holiday season (October-December) compared to off-peak months. Our calculator allows you to select the storage period to reflect this difference.

Other potential fees not included in this simplified calculator might include long-term storage fees, removal order fees, disposal fees, return processing fees, and inbound shipping charges (which we include as "Shipping Cost to Amazon" for simplicity).

How to Use the Calculator

1. Product Selling Price: Enter the price you plan to sell your product for on Amazon.
2. Cost of Goods Sold: Input the direct cost to manufacture or purchase your product.
3. Shipping Cost to Amazon: Estimate the cost to ship one unit of your product from your supplier or warehouse to Amazon's fulfillment center.
4. Amazon Referral Fee (%): Find the referral fee percentage for your specific product category on Amazon Seller Central and enter it here. A common default is 15%.
5. Product Dimensions (Length, Width, Height in inches): Measure your product accurately, including its packaging. These dimensions are critical for determining the FBA fulfillment fee tier.
6. Product Weight (lbs): Weigh your product, including its packaging. This also impacts the fulfillment fee.
7. Storage Month: Select whether your product will be stored during peak (Oct-Dec) or off-peak (Jan-Sep) months, as storage fees differ significantly.
8. Click "Calculate FBA Fees": The calculator will instantly display your estimated referral fee, fulfillment fee, monthly storage fee, total FBA fees, total costs, net profit, and profit margin.

Example Calculation

Let's say you're selling a book:

• Selling Price: $25.00
• Cost of Goods Sold: $5.00
• Shipping to Amazon: $0.50
• Referral Fee (%): 15%
• Length: 10 inches
• Width: 8 inches
• Height: 2 inches
• Weight: 1.5 lbs
• Storage Month: January – September (Off-Peak)

Based on these inputs, the calculator would estimate:

• Referral Fee: $3.75 (15% of $25.00)
• FBA Fulfillment Fee: Approximately $5.15 (for a Large Standard-Size item weighing 1.5 lbs)
• Monthly Storage Fee: Approximately $0.08 (based on volume and off-peak rate)
• Total Estimated FBA Fees: $3.75 + $5.15 + $0.08 = $8.98
• Total Estimated Costs: $5.00 (COGS) + $0.50 (Shipping) + $8.98 (FBA Fees) = $14.48
• Estimated Net Profit: $25.00 – $14.48 = $10.52
• Estimated Profit Margin: ($10.52 / $25.00) * 100 = 42.08%

This example demonstrates how quickly you can assess the financial viability of a product using the calculator. Remember to always verify current Amazon fee schedules for the most accurate planning.