amazon storage fee calculator is a critical tool for sellers using FBA, as it helps estimate the monthly and long-term storage fees associated with keeping inventory in Amazon’s fulfillment centers. These fees depend on the size and duration of storage, making accurate forecasting essential for profit margin management. By inputting product dimensions and timeframes, sellers can make better decisions about stock rotation and warehousing strategies. The calculator helps avoid costly surprises, particularly during peak seasons when storage rates increase significantly.