Calculate your FBA net profit, margins, and ROI instantly.
Net Profit: $0.00
Profit Margin: 0.00%
ROI: 0.00%
Total Amazon Fees: $0.00
Understanding Your Amazon FBA Profitability
Selling on Amazon is more than just revenue; it's about understanding the complex fee structure that impacts your bottom line. This Amazon Seller Profit Calculator helps FBA (Fulfillment by Amazon) sellers estimate their actual earnings after all platform costs and operational expenses.
Key Components of Amazon Costs
Referral Fee: Amazon's commission for selling on their platform. This is typically 15% for most categories, but can range from 8% to 45%.
Fulfillment Fee (FBA Fee): The cost for Amazon to pick, pack, and ship your item. This depends heavily on the weight and dimensions of your product.
COGS (Cost of Goods Sold): The manufacturing cost of the product per unit.
PPC & Advertising: Your marketing spend divided by the number of units sold. Understanding your ACoS (Advertising Cost of Sale) is vital for this calculation.
Example Profit Calculation
Imagine you sell a yoga mat for $40.00. Your costs are as follows:
Unit Cost
$10.00
Amazon Referral Fee (15%)
$6.00
FBA Fee
$7.50
Shipping & PPC
$4.50
Net Profit
$12.00
In this scenario, your Profit Margin is 30% and your ROI is 120% ($12.00 profit / $10.00 cost).
How to Improve Your Margins
If your results are lower than expected, consider optimizing your packaging to reduce the FBA Fee tier, or renegotiating with suppliers to lower your COGS. Many successful sellers aim for a 30% margin after all expenses to ensure their business remains sustainable through market fluctuations.
function calculateAmazonProfit() {
var salePrice = parseFloat(document.getElementById('salePrice').value) || 0;
var unitCost = parseFloat(document.getElementById('unitCost').value) || 0;
var referralPercent = parseFloat(document.getElementById('referralFeePercent').value) || 0;
var fbaFee = parseFloat(document.getElementById('fbaFee').value) || 0;
var shipping = parseFloat(document.getElementById('shippingToAmazon').value) || 0;
var ppc = parseFloat(document.getElementById('ppcCost').value) || 0;
// Calculations
var referralFeeAmount = salePrice * (referralPercent / 100);
var totalAmazonFees = referralFeeAmount + fbaFee;
var totalExpenses = unitCost + totalAmazonFees + shipping + ppc;
var netProfit = salePrice – totalExpenses;
var profitMargin = (salePrice > 0) ? (netProfit / salePrice) * 100 : 0;
var roi = (unitCost > 0) ? (netProfit / unitCost) * 100 : 0;
// Display Results
document.getElementById('results-area').style.display = 'block';
document.getElementById('netProfit').innerText = '$' + netProfit.toFixed(2);
document.getElementById('profitMargin').innerText = profitMargin.toFixed(2) + '%';
document.getElementById('roiValue').innerText = roi.toFixed(2) + '%';
document.getElementById('totalFees').innerText = '$' + totalAmazonFees.toFixed(2);
// Color coding for profit
if (netProfit < 0) {
document.getElementById('netProfit').style.color = '#c62828';
} else {
document.getElementById('netProfit').style.color = '#2e7d32';
}
}