Tool · Multi-SKU Calculator

Reorder Point Calculator

Calculate when to reorder inventory for each SKU based on daily demand, lead time, and safety stock levels.

Reorder Point Formula
ROP = (Avg Daily Sales × Lead Time Days) + Safety Stock

ROP = Reorder Point — the inventory level that triggers a new order

Avg Daily Sales = Average number of units sold per day

Lead Time Days = Number of days between placing and receiving an order

Safety Stock = Extra buffer stock to protect against variability

SKU NameAvg Daily SalesLead Time (Days)Safety StockCurrent Stock

How to use this calculator

  • SKU Name — A unique identifier for each product (e.g. “Blue Widget 12oz”).
  • Avg Daily Sales — The average number of units you sell per day over a typical period (e.g. last 30-90 days).
  • Lead Time (Days) — How many days it takes from placing an order with your supplier until the stock arrives at your warehouse.
  • Safety Stock — Extra buffer units kept on hand to protect against unexpected demand spikes or supplier delays. Use our Safety Stock Calculator to find the optimal level.
  • Current Stock — (Optional) Your current inventory level. If provided, the calculator will tell you whether you need to reorder now.
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
  • AI demand forecasting predicts stockouts before they happen
  • Smart reorder alerts so you never miss a purchase order
  • Real-time sync — no CSV exports or manual data entry
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Tool guide · Why use it

What this tool helps you do

  • Never run out of stock with precise reorder alerts
  • Analyze multiple SKUs simultaneously
  • Factor in safety stock for demand variability
  • Reduce excess inventory holding costs
  • Speed up your purchasing decisions
FAQ · 05 entries

Frequently asked questions.

01What is a reorder point?

A reorder point (ROP) is the inventory level at which a new order should be placed to replenish stock before it runs out. It accounts for average daily sales, supplier lead time, and safety stock to ensure continuous availability.

02How is the reorder point calculated?

The reorder point is calculated using the formula: ROP = (Average Daily Sales × Lead Time Days) + Safety Stock. This ensures you place orders early enough to receive new stock before your current inventory is depleted.

03What is safety stock and why is it important?

Safety stock is extra inventory kept on hand to protect against unexpected demand spikes or supplier delays. Without safety stock, any deviation from average demand or lead time could result in a stockout.

04How do I determine my safety stock level?

Safety stock depends on demand variability, lead time variability, and your desired service level. A common approach is to use the safety stock formula: Z-score × standard deviation of demand × √(lead time). Our Safety Stock Calculator can help you determine the optimal level.

05Can I calculate reorder points for multiple products at once?

Yes! This calculator supports multi-SKU input. Add as many products as you need, enter their individual demand and lead time data, and get reorder points for all of them simultaneously.