Inventory planning tools

Free calculators that need no sign-up and run in your browser. Each shows the result for one product, with every step of the calculation in your own figures.

The data you enter is processed only in your browser; it is not sent to us and not stored.

  • Safety stock calculator

    Safety stock with a simple rule or a service-level formula; paste sales history, intermittent-demand warning and a stock chart.

  • Reorder point calculator

    Reorder point, target stock and suggested order; rounding to minimum order and case size, and a stock chart.

The guides also include an economic order quantity (EOQ) and an inventory turnover calculator.