Tool · Service Level Analysis

Safety Stock Calculator

Determine optimal buffer stock levels by comparing costs and coverage across different service levels.

Safety Stock Formula
Safety Stock = Z × σ(demand) × √(Lead Time)

Z = Z-score corresponding to the desired service level

σ(demand) = Standard deviation of daily demand

Lead Time = Supplier lead time in days

Input Parameters

Enter your demand and lead time data above to see safety stock recommendations across service levels. Results update automatically as you type.

Multi-channel inventory

Stop running these numbers by hand.

You just calculated this for a handful of SKUs. Organizely does it across your entire catalog, updates every time an order comes in, and tells you exactly when to act.

  • Automatically tracks every SKU across all your channels
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  • Smart reorder alerts so you never miss a purchase order
  • Real-time sync — no CSV exports or manual data entry

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