.fba-calc-container {
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
max-width: 900px;
margin: 20px auto;
padding: 25px;
border: 1px solid #e0e0e0;
border-radius: 12px;
background-color: #ffffff;
color: #333;
box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}
.fba-calc-header {
text-align: center;
margin-bottom: 30px;
}
.fba-calc-header h2 {
color: #232f3e;
margin-bottom: 10px;
font-size: 28px;
}
.fba-calc-grid {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 25px;
}
@media (max-width: 768px) {
.fba-calc-grid { grid-template-columns: 1fr; }
}
.fba-input-group {
margin-bottom: 15px;
}
.fba-input-group label {
display: block;
font-weight: 600;
margin-bottom: 5px;
font-size: 14px;
color: #444;
}
.fba-input-wrapper {
position: relative;
}
.fba-input-wrapper span {
position: absolute;
left: 10px;
top: 50%;
transform: translateY(-50%);
color: #888;
}
.fba-input-wrapper input {
width: 100%;
padding: 10px 10px 10px 25px;
border: 1px solid #ccc;
border-radius: 6px;
font-size: 16px;
box-sizing: border-box;
}
.fba-input-wrapper input:focus {
outline: none;
border-color: #ff9900;
box-shadow: 0 0 5px rgba(255,153,0,0.3);
}
.fba-calculate-btn {
width: 100%;
padding: 15px;
background-color: #ff9900;
color: #fff;
border: none;
border-radius: 6px;
font-size: 18px;
font-weight: bold;
cursor: pointer;
margin-top: 10px;
transition: background-color 0.2s;
}
.fba-calculate-btn:hover {
background-color: #e68a00;
}
.fba-results {
background-color: #f8f9fa;
padding: 20px;
border-radius: 8px;
border: 1px solid #eaeded;
}
.fba-result-item {
display: flex;
justify-content: space-between;
padding: 10px 0;
border-bottom: 1px solid #eee;
}
.fba-result-item:last-child {
border-bottom: none;
}
.fba-result-label {
font-weight: 500;
color: #555;
}
.fba-result-value {
font-weight: 700;
font-size: 18px;
}
.fba-profit-highlight {
color: #2e7d32;
}
.fba-article {
margin-top: 40px;
line-height: 1.6;
color: #333;
}
.fba-article h3 {
color: #232f3e;
border-left: 5px solid #ff9900;
padding-left: 15px;
margin-top: 30px;
}
.fba-article p {
margin-bottom: 15px;
}
.fba-article ul {
margin-bottom: 15px;
padding-left: 20px;
}
Referral Fee:
$0.00
Total Amazon Fees:
$0.00
Total Landed Cost:
$0.00
Net Profit:
$0.00
Net Margin:
0.00%
ROI:
0.00%
How to Use the Amazon FBA Profit Calculator
Understanding your numbers is the difference between a successful e-commerce business and a failing one. Our Amazon FBA Profit Calculator helps you breakdown the complex fee structure of Selling on Amazon.
Understanding FBA Fees
- Amazon Referral Fee: This is essentially a commission Amazon takes for every item sold. For most categories, this is 15%, but it can range from 8% to 45% depending on the niche.
- FBA Fulfillment Fee: This covers the cost of picking, packing, and shipping your product to the customer. This varies based on the size and weight of your item.
- Storage Fees: Amazon charges for the space your inventory occupies in their fulfillment centers. These fees typically increase during the Q4 holiday season.
- COGS (Cost of Goods Sold): This is what you paid the manufacturer to produce the item.
Real-World Example
Imagine you are selling a yoga mat for $40.00. Your manufacturing cost is $10.00, and shipping to the Amazon warehouse is $2.00 per unit. If the referral fee is 15% ($6.00) and the FBA fulfillment fee is $7.50, your total costs would be $25.50. This leaves you with a $14.50 Net Profit, a 36.25% Net Margin, and a 145% ROI on your initial product cost.
Why Profit Margin and ROI Matter
Profit Margin tells you how much of every dollar of revenue you keep. ROI (Return on Investment) tells you how efficiently your capital is working. For Amazon sellers, a healthy ROI allows for faster reinvestment into more inventory, which is the key to scaling an FBA brand.
function calculateFBA() {
var price = parseFloat(document.getElementById('fba_price').value) || 0;
var cost = parseFloat(document.getElementById('fba_cost').value) || 0;
var shipping = parseFloat(document.getElementById('fba_shipping').value) || 0;
var referralPercent = parseFloat(document.getElementById('fba_referral').value) || 0;
var fulfillment = parseFloat(document.getElementById('fba_fulfillment').value) || 0;
var storage = parseFloat(document.getElementById('fba_storage').value) || 0;
// Calculations
var referralFee = price * (referralPercent / 100);
var totalAmazonFees = referralFee + fulfillment + storage;
var totalLandedCost = cost + shipping;
var totalExpenses = totalAmazonFees + totalLandedCost;
var netProfit = price – totalExpenses;
var netMargin = price > 0 ? (netProfit / price) * 100 : 0;
var roi = cost > 0 ? (netProfit / cost) * 100 : 0;
// Display Results
document.getElementById('res_ref_fee').innerText = '$' + referralFee.toFixed(2);
document.getElementById('res_total_fees').innerText = '$' + totalAmazonFees.toFixed(2);
document.getElementById('res_landed_cost').innerText = '$' + totalLandedCost.toFixed(2);
document.getElementById('res_net_profit').innerText = '$' + netProfit.toFixed(2);
document.getElementById('res_margin').innerText = netMargin.toFixed(2) + '%';
document.getElementById('res_roi').innerText = roi.toFixed(2) + '%';
// Color coding profit
var profitElement = document.getElementById('res_net_profit');
if (netProfit < 0) {
profitElement.style.color = '#d32f2f';
} else {
profitElement.style.color = '#2e7d32';
}
}