Calculate your net profit, margins, and ROI for your Amazon FBA products.
Total Amazon Fees:$0.00
Total Unit Expenses:$0.00
Net Profit per Unit:$0.00
Net Margin:0%
ROI (Return on Investment):0%
How to Calculate Amazon FBA Profitability
Success on Amazon depends on more than just high sales volume; it requires a deep understanding of your margins. The Amazon FBA Profit Calculator helps you navigate the complex fee structure associated with Fulfillment by Amazon.
Key Metrics Explained
Unit Cost (COGS): This is the total cost to manufacture or purchase one unit of your product, including packaging.
Amazon Referral Fee: This is the "commission" Amazon takes for every sale. For most categories, this is 15%, but it can range from 8% to 45% depending on the niche.
FBA Fulfillment Fee: This covers the picking, packing, and shipping of your orders to customers. It is determined by the weight and dimensions of your product.
Storage Fees: Amazon charges for the space your inventory occupies in their fulfillment centers. These fees typically increase during Q4 (October – December).
Example Calculation
Suppose you sell a yoga mat for $40.00. Your manufacturing cost is $10.00 and shipping to Amazon costs $2.00. If the referral fee is 15% ($6.00) and the fulfillment fee is $7.00, with $0.50 in storage fees, your calculation would look like this:
To increase your profitability, consider optimizing your product packaging to reduce dimensions, which can move your product into a lower FBA fee tier. Additionally, sourcing higher volumes can lower your per-unit COGS, significantly boosting your ROI.
function calculateFBAProfit() {
var salePrice = parseFloat(document.getElementById('fba_salePrice').value);
var itemCost = parseFloat(document.getElementById('fba_itemCost').value);
var shipping = parseFloat(document.getElementById('fba_shipping').value) || 0;
var referralPercent = parseFloat(document.getElementById('fba_referralFee').value) || 0;
var fulfillment = parseFloat(document.getElementById('fba_fulfillment').value) || 0;
var storage = parseFloat(document.getElementById('fba_storage').value) || 0;
if (isNaN(salePrice) || isNaN(itemCost)) {
alert("Please enter at least the Sale Price and Unit Cost.");
return;
}
// Calculations
var referralFeeAmount = salePrice * (referralPercent / 100);
var totalAmazonFees = referralFeeAmount + fulfillment + storage;
var totalExpenses = itemCost + shipping + totalAmazonFees;
var netProfit = salePrice – totalExpenses;
var margin = (salePrice > 0) ? (netProfit / salePrice) * 100 : 0;
var roi = (itemCost > 0) ? (netProfit / itemCost) * 100 : 0;
// Display Results
document.getElementById('res_totalFees').innerText = "$" + totalAmazonFees.toFixed(2);
document.getElementById('res_totalExpenses').innerText = "$" + totalExpenses.toFixed(2);
var profitElement = document.getElementById('res_netProfit');
profitElement.innerText = "$" + netProfit.toFixed(2);
if (netProfit >= 0) {
profitElement.className = "fba-result-value profit-positive";
} else {
profitElement.className = "fba-result-value profit-negative";
}
document.getElementById('res_margin').innerText = margin.toFixed(2) + "%";
document.getElementById('res_roi').innerText = roi.toFixed(2) + "%";
// Show the results area
document.getElementById('fba_results_area').style.display = 'block';
}