
Instantly calculate 2026 FBA fees, classify size tiers accurately, and catch costly dimension/weight edge cases before they hit your margins.
Don't type manually. Just copy lines like "Box 15x30x15cm 1.5kg" from WeChat or Alibaba. We parse units and dimensions instantly.
Evaluating a catalog? Upload your Excel file. We process thousands of SKUs in seconds, detecting Fees, Tiers, and Billable Weights.
Updated with Amazon's latest 'Extra Large' OR-logic and strict 2-inch minimum volume rules. We protect you from fee surprises.
Extremely accurate. Our calculator implements the confirmed 2026 Amazon FBA logic, including the new 'Extra Large' OR-condition detection and the strict 2-inch minimum width/height rule for dimensional weight calculations.
Smart Paste is an AI-powered feature that parses text from supplier chats. Simply copy a line like 'Box 15x30x15cm 1.5kg' and paste it into the Smart Paste tab. We automatically extract and convert dimensions and weights.
Yes. It validates Amazon 2026 size-tier thresholds using both dimension rules and unit-weight rules, and flags oversize edge cases involved in strict dimensional weight calculations.
Yes! Use the 'Batch Upload' tab to upload an Excel file. We process thousands of rows instantly, providing a downloadable report with Size Tiers, FBA Fees, and Shipping Weights for your entire catalog.
Items priced under $10 qualify for Low-Price FBA rates. Our calculator automatically detects this based on your 'Selling Price' input, or you can manually toggle it to see the fee difference.
Amazon uses 'Dimensional Weight' for most tiers if the package is light but bulky. If (Length x Width x Height)/139 exceeds your actual weight, you are charged based on the volume. We highlight this difference in orange.
You can enable 'Calculate Head Haul' and enter your freight forwarder's rate (e.g., $1.5/kg). We calculate the total shipping cost based on the billable weight of your shipment.
Yes. All calculations are performed efficiently in your browser session. We do not store your product data permanently; it clears when you refresh.
No. You can select 'cm' or 'inch' in the dropdown, or just paste '20cm' in Smart Paste. We handle all unit conversions internally to match Amazon's Imperial standards.
The 2026 definition is stricter. An item is Extra Large if Longest side > 59", OR Median side > 33", OR Shortest > 33", OR Girth > 130". We apply these checks automatically.
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