Estimate your net profit, margins, and ROI for your Amazon FBA products.
Total Amazon Fees:$0.00
Total Landed Cost:$0.00
Profit Margin:0.00%
ROI:0.00%
Net Profit: $0.00
function calculateFBAProfit() {
var price = parseFloat(document.getElementById('fbaPrice').value) || 0;
var cogs = parseFloat(document.getElementById('fbaCogs').value) || 0;
var inbound = parseFloat(document.getElementById('fbaInbound').value) || 0;
var referralRate = parseFloat(document.getElementById('fbaReferral').value) || 0;
var pickPack = parseFloat(document.getElementById('fbaPickPack').value) || 0;
var storage = parseFloat(document.getElementById('fbaStorage').value) || 0;
var ppc = parseFloat(document.getElementById('fbaPpc').value) || 0;
var other = parseFloat(document.getElementById('fbaOther').value) || 0;
var referralFee = price * (referralRate / 100);
var totalFees = referralFee + pickPack + storage;
var totalExpenses = cogs + inbound + totalFees + ppc + other;
var netProfit = price – totalExpenses;
var margin = price > 0 ? (netProfit / price) * 100 : 0;
var totalInvestment = cogs + inbound + ppc + other;
var roi = totalInvestment > 0 ? (netProfit / totalInvestment) * 100 : 0;
document.getElementById('resTotalFees').innerText = '$' + totalFees.toFixed(2);
document.getElementById('resLandedCost').innerText = '$' + totalExpenses.toFixed(2);
document.getElementById('resMargin').innerText = margin.toFixed(2) + '%';
document.getElementById('resRoi').innerText = roi.toFixed(2) + '%';
document.getElementById('resNetProfit').innerText = '$' + netProfit.toFixed(2);
document.getElementById('fbaResults').style.display = 'block';
}
How to Use the Amazon FBA Profit Calculator
Calculating your potential earnings is the most critical step in Amazon product research. This Amazon FBA Profit Calculator helps you peel back the layers of marketplace fees to see what actually ends up in your bank account. Selling on Amazon involves more than just the product cost; it involves complex logistics and referral structures.
Understanding the Key Inputs
Selling Price: This is the final price the customer pays on Amazon. It is the baseline for calculating your referral fees.
Cost of Goods Sold (COGS): The manufacturing cost per unit paid to your supplier.
Amazon Referral Fee: Typically 15% for most categories, this is the "commission" Amazon takes for providing the marketplace.
FBA Fulfillment Fee: Also known as Pick & Pack fees. This covers the cost of Amazon employees locating your item, packing it, and shipping it to the customer.
Inbound Shipping: The cost to ship your inventory from your warehouse or supplier to Amazon's fulfillment centers.
The Importance of Net Margin and ROI
Many sellers focus on "Revenue," but revenue is a vanity metric. What matters is Net Profit Margin and Return on Investment (ROI).
A healthy Amazon business typically aims for a profit margin of 20% or higher. Your ROI tells you how hard your money is working for you. For example, an ROI of 100% means that for every $1.00 you spend on stock and shipping, you get $1.00 back in pure profit.
Real-World Example Calculation
Let's say you are selling a "Kitchen Gadget" for $25.00.
COGS: $5.00
Shipping to Amazon: $1.00
Referral Fee (15%): $3.75
FBA Fee: $4.50
PPC/Marketing: $2.00
In this scenario, your total costs are $16.25. Your Net Profit would be $8.75 per unit. This results in a 35% profit margin and an ROI of approximately 109% (excluding PPC from the core investment base depending on your accounting preference).
Hidden Costs to Watch Out For
Don't forget that Amazon charges Monthly Storage Fees which increase significantly during Q4 (October – December). If your inventory sits for more than 180 days, you may also be hit with Long-Term Storage Fees. Use this calculator frequently as you adjust your pricing strategy or when your shipping costs fluctuate.