Reorder point calculator

Methodology

Reorder point = (average daily demand × lead time) + (average daily demand × review period) + safety stock. The review-period term matters only under periodic review, where a replenishment opportunity is missed until the next review; set it to zero for continuous review. Cover = current stock ÷ average daily demand, in days. The reorder signal fires when current stock is at or below the reorder point. The model uses average demand and a fixed lead time: it does not model demand spikes, supplier reliability, minimum order quantities, batch sizing, or order-up-to levels. Safety stock should come from a variability model rather than being guessed. You supply every input: this site holds no live freight rates, transit times, or duty tables, and never estimates them for you. Results are an orientation model, not a quotation, and not customs, tax, insurance, or financial advice. Confirm duty rates, VAT treatment, and carrier terms with the relevant authority or provider before relying on them.