How calculations work

Each calculator applies the formula described on its page to the values you enter. Unless a page explicitly says otherwise, calculations run in your browser and are estimates for planning.

Marketplace fees and taxes

Amazon fees vary by marketplace, product category, price, dimensions, shipping weight, fulfillment method and current program rules. Tax treatment can also depend on where your business and inventory are located. Enter current values from your Seller Central account or qualified adviser when precision matters.

Cross-border costs

For cross-border scenarios, include product sourcing, domestic transport, international freight, customs-related costs, currency conversion and other costs that apply to your shipment. The calculators do not automatically determine tariff classification, tax registration obligations or customs liability.

Use in decisions

Check important results against Amazon reports, current fee previews and professional tax or compliance advice. AmzMate Tools does not guarantee profitability or marketplace outcomes.