Free FBA Tool

    Amazon FBA Fulfillment Fee Calculator by Size and Weight

    Amazon FBA Fulfillment Fee Calculator by Size & Weight: Formula, Inputs and Decision Guide

    Estimate Amazon FBA pick, pack, and shipping fees per unit using product dimensions, actual weight, dimensional weight, category, and size tier.

    Formula

    FBA fee = current size-tier and shipping-weight rate, adjusted for price and apparel rules

    How to use the result

    Test packaging changes around size-tier boundaries and verify the estimate in Revenue Calculator.

    US fee schedules change. The official Revenue Calculator remains the final verification source. Inputs and calculations stay in this browser.

    Amazon FBA costs

    Estimate your Amazon FBA pick, pack, and shipping costs per unit based on product dimensions and weight.

    Product Details

    Recommended for listing decisions. This replaces the size/weight planning estimate.

    Fulfillment Fee Estimate

    Enter your product details and click calculate to see the estimated FBA fulfillment fees.

    Understanding Amazon FBA Fulfillment Fees

    Amazon FBA (Fulfillment by Amazon) fulfillment fees cover the costs of picking, packing, and shipping your products to customers. These fees are charged per unit sold and vary based on the product's size tier and weight.

    How FBA Fulfillment Fees Work

    When a customer places an order, Amazon handles the entire fulfillment process. The fulfillment fee includes:

    • Picking: Retrieving your product from warehouse storage
    • Packing: Preparing the item for shipment with appropriate packaging
    • Shipping: Delivering the product to the customer's address
    • Customer Service: Handling inquiries related to FBA orders

    FBA Size Tiers Explained

    Amazon categorizes products into size tiers that determine fulfillment fees:

    • Small Standard: Up to 15" x 12" x 0.75" and 1 lb or less
    • Large Standard: Up to 18" x 14" x 8" and 20 lbs or less
    • Large Bulky: Up to 60" longest side, 130" length + girth, 70 lbs or less
    • Extra-Large: Exceeds large bulky dimensions or weight

    Dimensional Weight vs Actual Weight

    Amazon uses the greater of actual weight or dimensional weight to calculate fees. Dimensional weight is calculated as: Length × Width × Height ÷ 139. This ensures that large, lightweight items are charged appropriately for the space they occupy.

    Tips to Reduce FBA Fulfillment Fees

    • Optimize Packaging: Use the smallest possible packaging to reduce dimensions
    • Consider Product Bundling: Combine multiple items to spread fees across units
    • Review Size Tier Boundaries: Small dimension changes can move products to a cheaper tier
    • Use FBA New Selection: Take advantage of fee discounts for new-to-FBA products
    • Monitor Fee Changes: Amazon can update schedules and temporary surcharges during the year

    Apparel vs Non-Apparel Fees

    Apparel items have slightly higher fulfillment fees than non-apparel products due to additional handling requirements like folding and packaging in poly bags. When listing apparel products, factor in these higher costs when calculating your profit margins.