Calculate your net profit, margins, and ROI for Amazon FBA products.
Total Amazon Fees:$0.00
Total Expenses:$0.00
Net Profit:$0.00
Net Margin:0%
Return on Investment (ROI):0%
How to Use the Amazon FBA Profit Calculator
Success on Amazon hinges on understanding your numbers. This calculator helps Amazon sellers estimate the actual take-home profit after accounting for Amazon's multi-layered fee structure. To get an accurate result, ensure you have your landing costs and current Amazon category fee percentages ready.
Understanding FBA Fees
When selling via Fulfillment by Amazon (FBA), you encounter several key costs:
Referral Fees: This is Amazon's commission for selling on their platform. It usually ranges from 8% to 15% depending on the category.
Fulfillment Fees: This covers picking, packing, and shipping your product to the customer. This is based on the weight and dimensions of your product.
Storage Fees: Monthly fees based on the volume (cubic feet) your inventory occupies in Amazon warehouses.
COGS: Cost of Goods Sold includes the manufacturing price and any packaging costs.
Example Calculation
Suppose 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. If the Referral Fee is 15% ($6.00) and the FBA Fulfillment Fee is $7.00, your total expenses before marketing are $25.00. This leaves you with a $15.00 profit per unit, a 37.5% margin, and a 125% ROI on your initial product investment.
Strategies to Improve Margins
If your margins are slim (below 15%), consider these steps:
Optimize Packaging: Reducing the size or weight can drop your product into a lower FBA fee tier.
Bulk Sourcing: Negotiate lower COGS with manufacturers by increasing order volume.
Increase Price: Sometimes a small $1-2 increase in price significantly boosts net profit without impacting conversion rates.
function calculateFBAProfit() {
// Get Input Values
var price = parseFloat(document.getElementById('fba_price').value) || 0;
var cost = parseFloat(document.getElementById('fba_cost').value) || 0;
var shipIn = parseFloat(document.getElementById('fba_shipping_in').value) || 0;
var referralPercent = parseFloat(document.getElementById('fba_referral').value) || 0;
var fulfillment = parseFloat(document.getElementById('fba_fulfillment').value) || 0;
var marketing = parseFloat(document.getElementById('fba_marketing').value) || 0;
// Logic
var referralFeeValue = (referralPercent / 100) * price;
var totalAmazonFees = referralFeeValue + fulfillment;
var totalExpenses = cost + shipIn + totalAmazonFees + marketing;
var netProfit = price – totalExpenses;
var netMargin = price > 0 ? (netProfit / price) * 100 : 0;
// ROI is calculated on the capital invested (COGS + Shipping In)
var capitalInvested = cost + shipIn;
var roi = capitalInvested > 0 ? (netProfit / capitalInvested) * 100 : 0;
// Display Results
document.getElementById('res_fees').innerHTML = '$' + totalAmazonFees.toFixed(2);
document.getElementById('res_total_exp').innerHTML = '$' + totalExpenses.toFixed(2);
var profitEl = document.getElementById('res_profit');
profitEl.innerHTML = '$' + netProfit.toFixed(2);
if (netProfit >= 0) {
profitEl.className = 'fba-result-value profit-positive';
} else {
profitEl.className = 'fba-result-value profit-negative';
}
document.getElementById('res_margin').innerHTML = netMargin.toFixed(2) + '%';
document.getElementById('res_roi').innerHTML = roi.toFixed(2) + '%';
// Show result box
document.getElementById('fba_results_box').style.display = 'block';
}