Free inventory planning tools

Quick calculators for demand planners and inventory managers. Everything runs in your browser — nothing you type is stored or sent anywhere.

• Safety stock & reorder point calculator

  How much buffer stock do you need for a target service level, and at what inventory level should you reorder? Includes lead-time variability.

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• Demand pattern classifier

  Paste a demand history and find out whether it is smooth, erratic, intermittent, or lumpy (ADI / CV²) — and which forecasting method actually fits it.

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• Dead stock cost calculator

  Put a dollar figure on inventory that is not moving: the capital it ties up and what holding it quietly costs every month.

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These tools use standard textbook formulas and run entirely client-side. They are simplifications — useful for a first estimate, not a substitute for item-by-item planning on your real data.