Free Inventory Tool

Free Safety Stock Calculator

Calculate the exact buffer inventory you need to protect against supplier delays and sudden demand spikes without tying up cash in dead stock.

Your Variables

The most units you've ever sold in a single day.

The longest it has ever taken a supplier to deliver an order.

Your normal, everyday sales volume.

Your normal, expected supplier delivery time.

Your Safety Stock

160
Units

How this is calculated:

Safety Stock = (Max Daily Sales × Max Lead Time) - (Avg Daily Sales × Avg Lead Time)

  • Max Lead Time Demand: 300 units (Absolute worst-case scenario demand)
  • Average Lead Time Demand: 140 units (Normal, expected demand)

Tired of calculating this manually?

After initial setup, Slapsoil tracks local stock and uses sales history for forecasting without a live connection. Forecasts support a reorder decision; they do not contact suppliers or model supplier lead times. The local app is free, with optional Cloud Sync sold separately.

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