.fba-header { background-color: #232f3e; color: #ffffff; padding: 25px; border-radius: 8px 8px 0 0; text-align: center; }
.fba-header h2 { margin: 0; font-size: 24px; color: #ff9900; }
.fba-container { padding: 30px; }
.fba-row { display: flex; flex-wrap: wrap; gap: 20px; margin-bottom: 20px; }
.fba-input-group { flex: 1; min-width: 250px; }
.fba-label { display: block; font-weight: 600; margin-bottom: 8px; font-size: 14px; color: #555; }
.fba-input-group input { width: 100%; padding: 12px; border: 1px solid #ccc; border-radius: 4px; font-size: 16px; box-sizing: border-box; }
.fba-input-group input:focus { border-color: #ff9900; outline: none; box-shadow: 0 0 5px rgba(255, 153, 0, 0.3); }
.fba-btn { background-color: #ff9900; color: #111; border: none; padding: 15px 30px; font-size: 18px; font-weight: 700; border-radius: 4px; cursor: pointer; width: 100%; transition: background-color 0.2s; margin-top: 10px; }
.fba-btn:hover { background-color: #e68a00; }
.fba-results { margin-top: 30px; padding: 20px; background-color: #f7f7f7; border-radius: 6px; display: none; }
.fba-result-card { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid #ddd; }
.fba-result-card:last-child { border-bottom: none; }
.fba-result-val { font-weight: 700; font-size: 18px; }
.fba-profit-pos { color: #2e7d32; }
.fba-profit-neg { color: #d32f2f; }
.fba-article { padding: 30px; border-top: 1px solid #eee; }
.fba-article h3 { color: #232f3e; margin-top: 25px; }
.fba-table { width: 100%; border-collapse: collapse; margin: 20px 0; }
.fba-table th, .fba-table td { border: 1px solid #ddd; padding: 12px; text-align: left; }
.fba-table th { background-color: #f4f4f4; }
How to Use the Amazon FBA Profit Calculator
Success on Amazon hinges on understanding your numbers. This Amazon FBA Profit Calculator helps you determine if a product is viable by factoring in every cost associated with the "Fulfillment by Amazon" program.
To get an accurate result, follow these steps:
- Selling Price: The price the customer pays at checkout.
- Product Cost (COGS): What you pay your supplier for the item.
- Shipping to Amazon: The cost of freight or small parcel delivery to Amazon's fulfillment centers.
- FBA Fees: The pick-and-pack fee charged by Amazon based on weight and size.
- Referral Fee: Usually 15% for most categories, but it varies from 8% to 45% depending on the niche.
Understanding the Math Behind Your FBA Margin
To calculate your profit, we use the following standard formula:
Net Profit = Selling Price – (Product Cost + Shipping + Referral Fee + FBA Fee + Other Costs)
Your Return on Investment (ROI) is arguably more important than your margin, as it tells you how much money you make back for every dollar spent on inventory. An ROI of 100% means you doubled your money.
Example Calculation Scenario
| Expense Item |
Value |
| Selling Price |
$40.00 |
| COGS (Manufacturing) |
$10.00 |
| Amazon Referral Fee (15%) |
$6.00 |
| Fulfillment (FBA) Fee |
$5.50 |
| Shipping & Other |
$2.50 |
| Net Profit |
$16.00 |
| ROI |
160% |
3 Tips for Improving Your FBA Profitability
1. Optimize Packaging: Amazon's FBA fees are heavily dependent on size and weight tiers. Reducing your package dimensions by even half an inch can often drop your fulfillment fee by a full tier, saving you dollars per unit.
2. Monitor Storage Fees: Amazon charges monthly storage fees that increase significantly during Q4 (October–December). High-volume, low-margin items that sit for months can quickly become unprofitable.
3. Bundle Products: By bundling multiple items together, you only pay one "Fulfillment Fee" for the entire package instead of individual fees for each item, drastically increasing your margin per shipment.
function calculateFBAProfit() {
var sellingPrice = parseFloat(document.getElementById('sellingPrice').value) || 0;
var productCost = parseFloat(document.getElementById('productCost').value) || 0;
var shippingToAmazon = parseFloat(document.getElementById('shippingToAmazon').value) || 0;
var fbaFee = parseFloat(document.getElementById('fbaFee').value) || 0;
var referralRate = parseFloat(document.getElementById('referralFee').value) || 0;
var otherCosts = parseFloat(document.getElementById('otherCosts').value) || 0;
if (sellingPrice 0 ? (netProfit / productCost) * 100 : 0;
// UI Display
document.getElementById('resRevenue').innerText = "$" + sellingPrice.toFixed(2);
document.getElementById('resAmazonFees').innerText = "-$" + totalAmazonFees.toFixed(2);
document.getElementById('resTotalExpenses').innerText = "$" + totalExpenses.toFixed(2);
var profitEl = document.getElementById('resNetProfit');
profitEl.innerText = "$" + netProfit.toFixed(2);
profitEl.className = netProfit >= 0 ? "fba-result-val fba-profit-pos" : "fba-result-val fba-profit-neg";
document.getElementById('resMargin').innerText = margin.toFixed(2) + "%";
document.getElementById('resROI').innerText = roi.toFixed(2) + "%";
document.getElementById('fbaResults').style.display = 'block';
}