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Amazon FBA Profit Calculator

Calculate your net margins, ROI, and total Amazon fees

Amazon Fees Total: $0.00
Net Profit: $0.00
Profit Margin: 0.00%
ROI (Return on Investment): 0.00%
function calculateFBA() { var salePrice = parseFloat(document.getElementById('salePrice').value) || 0; var costOfGoods = parseFloat(document.getElementById('costOfGoods').value) || 0; var shippingCost = parseFloat(document.getElementById('shippingCost').value) || 0; var referralFeePercent = parseFloat(document.getElementById('referralFeePercent').value) || 0; var fulfillmentFee = parseFloat(document.getElementById('fulfillmentFee').value) || 0; var otherCosts = parseFloat(document.getElementById('otherCosts').value) || 0; var referralFeeAmount = salePrice * (referralFeePercent / 100); var totalAmazonFees = referralFeeAmount + fulfillmentFee; var totalExpenses = costOfGoods + shippingCost + totalAmazonFees + otherCosts; var netProfit = salePrice – totalExpenses; var profitMargin = (salePrice > 0) ? (netProfit / salePrice) * 100 : 0; var roi = (costOfGoods > 0) ? (netProfit / costOfGoods) * 100 : 0; document.getElementById('displayFees').innerText = '$' + totalAmazonFees.toFixed(2); document.getElementById('displayProfit').innerText = '$' + netProfit.toFixed(2); document.getElementById('displayMargin').innerText = profitMargin.toFixed(2) + '%'; document.getElementById('displayROI').innerText = roi.toFixed(2) + '%'; if (netProfit < 0) { document.getElementById('displayProfit').style.color = '#cc0000'; } else { document.getElementById('displayProfit').style.color = '#007600'; } }

How to Use the Amazon FBA Profit Calculator

Success on Amazon hinges on understanding your numbers. A high volume of sales means nothing if your margins are eaten away by hidden fees. This Amazon FBA Profit Calculator helps you determine the viability of a product before you source it.

Understanding the Key Inputs

  • Product Sale Price: The final price the customer pays on Amazon.
  • Cost of Goods (COGS): The total cost to manufacture or purchase the product from your supplier.
  • Referral Fee: Usually 15% for most categories, this is Amazon's commission for selling on their platform.
  • Fulfillment Fee: The flat fee Amazon charges to pick, pack, and ship your item. This depends on the size and weight of your product.
  • Shipping to Amazon: The cost of freight or small parcel delivery to get your inventory into an Amazon Fulfillment Center.

Example Calculation

Let's say you are selling a yoga mat for $40.00. Your costs are as follows:

– COGS: $10.00
– Shipping to Amazon: $2.00
– Referral Fee (15%): $6.00
– Fulfillment Fee: $7.50
– PPC/Marketing: $4.00
– Total Expenses: $29.50
– Net Profit: $10.50
– Profit Margin: 26.25%

Why ROI and Margin Matter

While Net Profit tells you how much money you keep per sale, Profit Margin tells you how healthy your business model is. Most FBA sellers aim for at least a 25-30% margin to account for fluctuations in PPC costs or returns. ROI (Return on Investment) is even more critical; it measures how hard your capital is working for you. An ROI of 100% means you doubled your investment in the product.

Tips for Improving FBA Margins

  1. Optimize Packaging: Reducing the size or weight of your product packaging can drop you into a lower FBA fulfillment tier, saving dollars per unit.
  2. Negotiate with Suppliers: As your volume increases, always negotiate for a lower per-unit cost.
  3. Monitor Storage Fees: Amazon increases storage rates significantly during Q4 (October – December). Keep your inventory lean to avoid "aged inventory surcharges."

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