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Stock Reorder Calculator

Know exactly when to reorder stock. Calculate reorder points and safety stock levels.

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Free Stock Reorder Point Calculator | Inventory Management

Optimize Your Inventory Reordering

Running out of stock means lost sales, while overstocking ties up cash. The Stock Reorder Point Calculator helps you find the sweet spot: knowing exactly when to place a new order so it arrives just as your current stock runs out.

Key Metrics Calculated

  • Reorder Point (ROP): The inventory level at which you should place a new order.
  • Safety Stock: Extra stock kept to mitigate risk of stockouts due to supply chain delays or demand spikes.
  • Lead Time Demand: How much product you sell while waiting for a new shipment.
  • The Formulas

    Reorder Point:

    $$

    \text{Reorder Point} = (\text{Avg Daily Sales} \times \text{Lead Time}) + \text{Safety Stock}

    $$

    Safety Stock:

    $$

    \text{Safety Stock} = (\text{Max Daily Sales} \times \text{Max Lead Time}) - (\text{Avg Daily Sales} \times \text{Avg Lead Time})

    $$

    How to Use

  • Sales Data: Enter your average and maximum daily sales.
  • Lead Time: Enter how many days it takes for your supplier to deliver (average and maximum).
  • Get Results: The calculator will tell you the exact quantity at which you should trigger a reorder.
  • Why Use Safety Stock?

    Safety stock acts as an insurance policy against:

  • Unexpected spikes in customer demand
  • Supplier delays or shipping issues
  • Damaged goods during transit
  • By maintaining the right safety stock, you ensure 100% fulfillment rates without hoarding unnecessary inventory.

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