Reorder Point Calculator

Calculate when inventory should be reordered from average daily sales, supplier lead time and safety stock.

Calculate

Average units sold / day

Supplier lead time (days)

Safety stock (units)

Current stock (units)

Lead-time demand–

Reorder point–

Approx. days of cover–

Current signal–

Use real demand variability, supplier performance and MOQ when making purchase decisions.

What is lead-time demand?

Average daily sales multiplied by supplier lead time. It estimates how many units may be consumed while a replenishment order is in transit.

Why add safety stock?

Demand and supplier timing vary. Safety stock provides a buffer against those deviations.

Does this calculate order quantity?

This free calculator focuses on the reorder trigger. Order quantity also depends on demand, MOQ, cash, storage and purchasing strategy.