Estimate reorder points, safety stock and purchase quantities.
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Estimate reorder points, safety stock and purchase quantities. Enter your data, run the tool and review the output before using it.
Estimates assume constant average demand and the lead time you enter. Incoming stock is included in the purchase quantity calculation, not the remaining days of current stock. Actual arrival dates, seasonality and stock reservations are not forecast.
At 5 units per day, 14 lead days, 7 safety days and a 7-day review interval, target stock is 140. With 80 on hand and 20 on order, the suggested purchase is 40 units.
target = daily_sales × (lead_days + safety_days + review_days); purchase = ceil(max(0, target − on_hand − on_order) / pack_size) × pack_size