Calculate Amazon fulfillment, referral, and storage fees in seconds
$
Enter the price at which you're selling the product on Amazon
Select the product category to apply the correct referral fee percentage
lbs
Enter the product weight in pounds for fulfillment fee calculation
in
Enter the length of your product packaging in inches
in
Enter the width of your product packaging in inches
in
Enter the height of your product packaging in inches
$/cu ft/month
Enter Amazon's current monthly storage fee per cubic foot for your category
units
Enter the total number of units you have in Amazon storage
Referral Fee—
Fulfillment Fee—
Monthly Storage Fee—
Total Fee Per Unit—
Total Monthly Cost (All Units)—
Net Profit Per Unit—
Profit Margin—
What does this mean? The calculator shows your per-unit costs broken down by referral and fulfillment fees, plus storage costs. Your Net Profit Per Unit is your selling price minus all fees, and Profit Margin shows what percentage of your selling price becomes profit. Use these metrics to determine if your product pricing and inventory levels are sustainable.
Understanding Amazon FBA Fees
Amazon's Fulfillment by Amazon (FBA) service is a powerful tool for sellers, but it comes with several types of fees that directly impact your bottom line. Understanding how these fees are calculated is crucial for pricing your products competitively while maintaining healthy profit margins. The FBA Fee Calculator helps you quickly determine all costs associated with selling through Amazon's fulfillment network.
Referral Fees Explained
Referral fees are Amazon's commission on each sale, typically ranging from 8% to 45% depending on your product category. Electronics, for example, usually have a 8% referral fee, while clothing often carries 17%. These fees are calculated automatically based on your selling price and are taken by Amazon regardless of whether you use FBA or Fulfillment by Merchant (FBM). Understanding your category's referral fee helps you set appropriate prices that still allow for profitability after all expenses.
Fulfillment Fees and Size Tiers
Fulfillment fees cover Amazon's costs for picking, packing, and shipping your products. These fees vary based on product size and weight, with Amazon using Standard-size and Oversize categories. Smaller, lighter items have lower fulfillment fees, making them more profitable per unit. The calculator uses your product's dimensions and weight to determine which tier applies and calculates the exact fulfillment fee. This is where product packaging efficiency becomes important—optimizing dimensions can move your item to a lower fee tier.
Storage Fees and Inventory Management
Amazon charges monthly storage fees based on the cubic feet your inventory occupies in their warehouses. Standard-size storage typically costs around $0.87 per cubic foot monthly, though this varies seasonally, with higher rates during October through December. Long-term storage fees apply to items stored for over a year. These fees make inventory management critical—excess stock directly reduces profitability. The calculator multiplies your product's cubic footage by the current storage rate and your total units to show total monthly storage costs.
Calculating Your Net Profit
Your net profit per unit is simply your selling price minus all fees: referral fee, fulfillment fee, and per-unit storage cost. This number represents what you actually keep from each sale. To maximize profit, you'll want to minimize fees through efficient product sizing, competitive pricing that doesn't trigger referral fee categories, and careful inventory management. The profit margin percentage shows what portion of your selling price becomes profit—generally, aim for at least 20-30% profit margins to account for product costs and unexpected expenses.
Optimization Strategies
Use the FBA Fee Calculator to test different scenarios. Try reducing dimensions to lower fulfillment fees, adjust selling prices to find the sweet spot between competitiveness and profitability, or model inventory reduction to lower storage costs. Small adjustments in any of these areas can significantly impact your monthly earnings, especially when selling high volumes. Many successful Amazon sellers use fee calculators as a planning tool before launching new products or adjusting their catalog.
The FBA fulfillment fee covers picking and packing your item, weight handling, customer service, product returns processing, and shipping to the customer. It's a comprehensive fee that includes all fulfillment logistics handled by Amazon warehouses.
How does Amazon determine product category for referral fees?
Amazon assigns referral fee percentages based on the product category you list in. Electronics typically have lower percentages (8-15%), while categories like Clothing, Shoes, and Jewelry have higher percentages (17-45%). Always verify your category to ensure accurate fee calculations.
Can I reduce my storage fees?
Yes, you can reduce storage fees by managing inventory levels more carefully, removing slow-moving items, or planning shipments to arrive during lower-demand periods. Additionally, ensuring products are properly sized and packaged minimizes cubic footage used.
What's a good profit margin for FBA products?
A healthy profit margin for FBA sellers is typically 20-30% or higher after all fees are deducted. However, this varies by category and competition level. Some highly competitive categories may require accepting 15% margins, while premium niches can achieve 40%+ margins.
Does the calculator include product cost?
The calculator shows fees and gross profit but doesn't include your product's cost to purchase or manufacture. To find your actual net profit, subtract your product cost from the Net Profit Per Unit shown in the results.