.fba-calculator-container {
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
max-width: 800px;
margin: 20px auto;
padding: 25px;
border: 1px solid #e1e4e8;
border-radius: 8px;
background-color: #ffffff;
color: #333;
box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}
.fba-calculator-container h2 {
color: #232f3e;
text-align: center;
margin-bottom: 25px;
font-size: 28px;
}
.fba-input-grid {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 20px;
margin-bottom: 25px;
}
@media (max-width: 600px) {
.fba-input-grid { grid-template-columns: 1fr; }
}
.fba-field-group {
display: flex;
flex-direction: column;
}
.fba-field-group label {
font-weight: 600;
margin-bottom: 8px;
font-size: 14px;
color: #555;
}
.fba-field-group input {
padding: 12px;
border: 1px solid #ddd;
border-radius: 4px;
font-size: 16px;
}
.fba-calc-btn {
background-color: #ff9900;
color: #fff;
border: none;
padding: 15px 30px;
font-size: 18px;
font-weight: bold;
border-radius: 4px;
cursor: pointer;
width: 100%;
transition: background-color 0.2s;
}
.fba-calc-btn:hover {
background-color: #e68a00;
}
.fba-results {
margin-top: 30px;
padding: 20px;
background-color: #f3f3f3;
border-radius: 6px;
display: none;
}
.fba-result-row {
display: flex;
justify-content: space-between;
padding: 10px 0;
border-bottom: 1px solid #ddd;
}
.fba-result-row:last-child { border-bottom: none; }
.fba-result-label { font-weight: 500; }
.fba-result-value { font-weight: bold; font-size: 18px; }
.profit-positive { color: #2e7d32; }
.profit-negative { color: #d32f2f; }
.fba-article {
margin-top: 40px;
line-height: 1.6;
color: #444;
}
.fba-article h3 { color: #232f3e; margin-top: 25px; }
.fba-article ul { margin-bottom: 20px; }
.fba-article li { margin-bottom: 10px; }
Amazon FBA Profit Calculator
Calculate Net Profit
Total Amazon Fees:
Total Cost of Goods:
Net Profit:
Profit Margin:
ROI (Return on Investment):
How to Use the Amazon FBA Calculator
Success on Amazon depends on understanding your "unit economics." Many sellers focus solely on the selling price and product cost, forgetting the complex web of Amazon-specific fees. Our Amazon FBA Calculator helps you peel back the layers to see your true take-home pay.
Key Metrics Explained
Selling Price: The final price the customer pays on Amazon.com.Referral Fee: This is Amazon's "commission." For most categories, this is 15% of the total sales price.Fulfillment Fee: The cost for Amazon to pick, pack, and ship your product to the customer. This depends on the weight and dimensions of your item.Storage Fees: Monthly fees charged for holding your inventory in Amazon fulfillment centers. This increases during Q4 (October – December).
Example Calculation
Let's say you sell a yoga mat for $40.00 . Your manufacturing cost is $10.00 and it costs $2.00 to ship it to an Amazon warehouse.
Referral Fee (15%): $6.00
Fulfillment Fee: $7.50
Storage Fee: $0.50
Total Fees: $14.00Total Expenses: $10 (Product) + $2 (Ship) + $14 (Fees) = $26.00Net Profit: $40.00 – $26.00 = $14.00 Margin: 35%
Strategies to Improve Your FBA Margins
If your margins are below 20%, your business is at risk from small fluctuations in PPC costs or returns. To improve profitability:
Reduce Packaging Size: Moving from "Large Standard" to "Small Standard" size tiers can save dollars per unit in fulfillment fees.Bulk Shipping: Lower your inbound shipping costs by sending larger shipments via LTL (Less Than Truckload) instead of individual boxes.Increase Price: Sometimes a $1-2 price increase has a negligible effect on conversion rate but a massive impact on net profit.
function calculateFBAMargins() {
var salePrice = parseFloat(document.getElementById('fba_sale_price').value) || 0;
var productCost = parseFloat(document.getElementById('fba_cost_product').value) || 0;
var shipToAmazon = parseFloat(document.getElementById('fba_ship_to_amazon').value) || 0;
var referralRate = parseFloat(document.getElementById('fba_referral_fee').value) || 0;
var fulfillmentFee = parseFloat(document.getElementById('fba_fulfillment_fee').value) || 0;
var storageFee = parseFloat(document.getElementById('fba_storage_fee').value) || 0;
if (salePrice 0) ? (netProfit / totalCOGS) * 100 : 0;
// Display results
document.getElementById('fba_results_box').style.display = 'block';
document.getElementById('res_total_fees').innerHTML = '$' + totalAmazonFees.toFixed(2);
document.getElementById('res_total_cogs').innerHTML = '$' + totalCOGS.toFixed(2);
var profitEl = document.getElementById('res_net_profit');
profitEl.innerHTML = '$' + netProfit.toFixed(2);
profitEl.className = 'fba-result-value ' + (netProfit >= 0 ? 'profit-positive' : 'profit-negative');
var marginEl = document.getElementById('res_margin');
marginEl.innerHTML = profitMargin.toFixed(2) + '%';
marginEl.className = 'fba-result-value ' + (profitMargin >= 0 ? 'profit-positive' : 'profit-negative');
document.getElementById('res_roi').innerHTML = roi.toFixed(2) + '%';
}