Reorder Point Calculator
Calculate when to reorder inventory to maintain optimal stock levels and avoid stockouts
About this calculator
A reorder point calculator determines the optimal inventory level at which new stock should be ordered to prevent stockouts while minimizing carrying costs. This tool helps businesses maintain smooth operations by calculating the precise moment to reorder based on lead times, demand patterns, and safety stock requirements. By using accurate reorder points, companies can reduce inventory costs, avoid lost sales from stockouts, and improve customer satisfaction through consistent product availability.
How to use
Enter your average daily demand, supplier lead time in days, and desired safety stock level. The calculator will compute your optimal reorder point using the formula: (Average Daily Demand × Lead Time) + Safety Stock. Review the result to determine when inventory levels should trigger a new purchase order.
Frequently asked questions
What is safety stock and why do I need it?
Safety stock is extra inventory kept as a buffer against unexpected demand spikes or supply delays, preventing stockouts during uncertainties.
How often should I recalculate my reorder point?
Review reorder points monthly or quarterly, or whenever there are significant changes in demand patterns, lead times, or supplier reliability.
What happens if my reorder point is too high or too low?
Too high increases storage costs and ties up capital; too low risks stockouts, lost sales, and customer dissatisfaction.