Note: This calculator estimates per-unit FBA fulfillment and referral fees. It does not include monthly storage fees, advertising costs, or other miscellaneous fees. Fees are based on approximate 2024 US FBA rates and are subject to change by Amazon.
function calculateAmazonFees() {
var productLength = parseFloat(document.getElementById('productLength').value);
var productWidth = parseFloat(document.getElementById('productWidth').value);
var productHeight = parseFloat(document.getElementById('productHeight').value);
var productWeight = parseFloat(document.getElementById('productWeight').value); // in pounds
var sellingPrice = parseFloat(document.getElementById('sellingPrice').value);
var productCategory = document.getElementById('productCategory').value;
if (isNaN(productLength) || isNaN(productWidth) || isNaN(productHeight) || isNaN(productWeight) || isNaN(sellingPrice) ||
productLength <= 0 || productWidth <= 0 || productHeight <= 0 || productWeight <= 0 || sellingPrice <= 0) {
document.getElementById('productTierResult').innerText = 'Invalid Input';
document.getElementById('fbaFulfillmentFeeResult').innerText = '$0.00';
document.getElementById('referralFeeResult').innerText = '$0.00';
document.getElementById('totalAmazonFeesResult').innerText = '$0.00';
alert('Please enter valid positive numbers for all fields.');
return;
}
// Sort dimensions to get longest, median, shortest
var dims = [productLength, productWidth, productHeight].sort(function(a, b) { return b – a; });
var longestSide = dims[0];
var medianSide = dims[1];
var shortestSide = dims[2];
var productVolumeCubicInches = productLength * productWidth * productHeight;
var productVolumeCubicFeet = productVolumeCubicInches / 1728; // 1728 cubic inches in 1 cubic foot
var fbaFulfillmentFee = 0;
var productTier = "N/A";
var chargeableWeight = productWeight; // Default to actual weight
// Convert weight to ounces for standard size checks
var productWeightOz = productWeight * 16;
// — Determine Product Tier and FBA Fulfillment Fee —
// Standard-Size Tiers (US FBA 2024 approximations)
if (longestSide <= 15 && medianSide <= 12 && shortestSide <= 0.75 && productWeightOz <= 10) {
productTier = "Small Standard-Size";
fbaFulfillmentFee = 3.22;
} else if (longestSide <= 18 && medianSide <= 14 && shortestSide <= 8 && productWeightOz <= 16) {
productTier = "Large Standard-Size (0.63 – 1 lb)";
fbaFulfillmentFee = 3.86;
} else if (longestSide <= 18 && medianSide <= 14 && shortestSide <= 8 && productWeight <= 2) {
productTier = "Large Standard-Size (1 – 2 lb)";
fbaFulfillmentFee = 4.75;
} else if (longestSide <= 18 && medianSide <= 14 && shortestSide <= 8 && productWeight <= 3) {
productTier = "Large Standard-Size (2 – 3 lb)";
fbaFulfillmentFee = 5.30;
} else if (longestSide <= 18 && medianSide <= 14 && shortestSide <= 8 && productWeight <= 20) {
// For standard items over 3 lbs, fee increases per pound.
// This is a simplification; Amazon has more granular tiers.
productTier = "Large Standard-Size (3 – 20 lb)";
fbaFulfillmentFee = 5.30 + (Math.ceil(productWeight – 3) * 0.42); // Approx. $0.42/lb over 3 lbs
}
// Oversize Tiers (US FBA 2024 approximations)
else {
// Calculate dimensional weight for oversize items
var dimensionalWeight = (productLength * productWidth * productHeight) / 139;
chargeableWeight = Math.max(productWeight, dimensionalWeight);
if (longestSide <= 60 && medianSide <= 30 && productWeight 2) {
fbaFulfillmentFee += (Math.ceil(chargeableWeight – 2) * 0.42);
}
} else if (longestSide <= 108 && (longestSide + (2 * (medianSide + shortestSide))) <= 130 && productWeight 2) {
fbaFulfillmentFee += (Math.ceil(chargeableWeight – 2) * 0.42);
}
} else if (longestSide <= 108 && (longestSide + (2 * (medianSide + shortestSide))) <= 165 && productWeight 90) { // For Large Oversize, additional weight fee starts after 90 lbs
fbaFulfillmentFee += (Math.ceil(chargeableWeight – 90) * 0.42);
}
} else {
productTier = "Special Oversize";
fbaFulfillmentFee = 140.00;
if (chargeableWeight > 90) { // For Special Oversize, additional weight fee starts after 90 lbs
fbaFulfillmentFee += (Math.ceil(chargeableWeight – 90) * 0.83);
}
}
}
// — Calculate Referral Fee —
var referralFee = 0;
var referralRate = 0;
var minReferralFee = 0;
switch (productCategory) {
case "Apparel":
referralRate = 0.17; // 17%
minReferralFee = 0.30;
break;
case "Electronics_Under_100":
referralRate = 0.08; // 8%
minReferralFee = 0; // No minimum for this specific tier
break;
case "Electronics_Over_100":
referralRate = 0.15; // 15%
minReferralFee = 0; // No minimum for this specific tier
break;
case "Books":
referralRate = 0.15; // 15%
// Books also have a $1.80 closing fee, but we are omitting closing fees for simplicity.
minReferralFee = 0;
break;
case "Other":
default:
referralRate = 0.15; // 15%
minReferralFee = 0.30;
break;
}
referralFee = sellingPrice * referralRate;
if (referralFee 0) {
referralFee = minReferralFee;
}
var totalAmazonFees = fbaFulfillmentFee + referralFee;
document.getElementById('productTierResult').innerText = productTier;
document.getElementById('fbaFulfillmentFeeResult').innerText = '$' + fbaFulfillmentFee.toFixed(2);
document.getElementById('referralFeeResult').innerText = '$' + referralFee.toFixed(2);
document.getElementById('totalAmazonFeesResult').innerText = '$' + totalAmazonFees.toFixed(2);
}
// Run calculation on page load with default values
window.onload = calculateAmazonFees;
Understanding Amazon FBA Fees: A Comprehensive Guide
Selling on Amazon's Fulfillment by Amazon (FBA) program offers incredible opportunities for sellers, but understanding the associated fees is crucial for profitability. This calculator helps you estimate the primary per-unit costs: FBA fulfillment fees and referral fees.
What are Amazon FBA Fees?
Amazon FBA fees are charges for storing, picking, packing, shipping, and providing customer service for your products. When you use FBA, you send your inventory to Amazon's fulfillment centers, and they handle the logistics once a customer places an order. These fees are a significant component of your overall cost of goods sold.
This is the core fee for Amazon handling your order. It covers the cost of picking the item from storage, packaging it, shipping it to the customer, and handling customer service and returns. The fulfillment fee is primarily determined by two factors:
Product Size Tier: Amazon categorizes products into "Standard-Size" and "Oversize" tiers, with further sub-tiers based on dimensions and weight. Smaller, lighter items generally incur lower fees.
Product Weight: The actual weight of the product, or its dimensional weight (whichever is greater for certain tiers), directly impacts the fee. Dimensional weight is calculated as (Length x Width x Height) / 139 for most items.
Our calculator uses approximate 2024 US FBA rates and common size tiers to give you an estimate. Keep in mind that Amazon frequently updates its fee structure, so always refer to the official Amazon Seller Central documentation for the most current rates.
2. Referral Fees (Commission)
Amazon charges a referral fee for every item sold on its platform, regardless of whether you use FBA or FBM (Fulfillment by Merchant). This is essentially Amazon's commission for providing the marketplace and customer base. Key aspects:
Percentage of Selling Price: The referral fee is calculated as a percentage of the item's selling price.
Category-Specific: The percentage varies significantly by product category (e.g., Apparel, Electronics, Books, Home & Kitchen).
Minimum Referral Fee: Many categories have a minimum referral fee (e.g., $0.30), meaning if the percentage calculation results in a lower amount, you'll still pay the minimum.
Our calculator includes common referral fee percentages for various categories to help you factor this into your pricing strategy.
Other Important Amazon Fees (Not Included in This Calculator):
Monthly Storage Fees: Charged for the space your inventory occupies in Amazon's fulfillment centers. These are calculated based on the daily average volume (cubic feet) of your inventory and vary by month (higher during Q4 holiday season).
Long-Term Storage Fees: Additional fees for inventory stored for extended periods (typically over 271 days).
Removal Order Fees: If you ask Amazon to return or dispose of your inventory.
Return Processing Fees: For customer returns in certain categories where Amazon offers free return shipping.
Advertising Costs: If you run Amazon PPC (Pay-Per-Click) campaigns.
Subscription Fees: For a Professional Seller account ($39.99/month).
How to Use the Amazon FBA Fee Calculator:
Enter Product Dimensions: Input the length, width, and height of your product in inches.
Enter Product Weight: Provide the weight of your product in pounds.
Enter Selling Price: Input the price you plan to sell your product for on Amazon.
Select Product Category: Choose the category that best fits your product to get an accurate referral fee estimate.
Click "Calculate": The calculator will instantly display the estimated product tier, FBA fulfillment fee, referral fee, and the total estimated Amazon fees per unit.
Example Calculation:
Let's say you're selling a small electronic gadget:
Based on these inputs, the calculator would determine:
Product Tier: Large Standard-Size (1 – 2 lb)
Estimated FBA Fulfillment Fee: ~$4.75
Estimated Referral Fee: $25.00 * 8% = $2.00
Total Estimated Amazon Fees: ~$6.75
This means for every unit sold, approximately $6.75 would go towards Amazon's fulfillment and referral services, before considering your cost of goods, advertising, or storage fees.
By accurately estimating these fees, you can make informed decisions about product sourcing, pricing strategies, and overall profitability when selling on Amazon FBA.