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Reorder point calculator

Find out when to reorder a product and how much to order. Enter its daily sales, your supplier's lead time, and how often you place orders, and see the math behind every number.

Units a day, leaving out days you were sold out.
Standard deviation of daily sales. Use 0 if unsure.
How often you want to avoid running out.
How long an order should last.

Reorder point

0

Order now

0

    This uses the same math as Posto: expected sales while you wait for a delivery, plus safety stock for the days that don't go to plan. Our reorder point guide explains each step. Posto runs it for every product in your store, every day, leaving out sold-out days, adding seasonality and Black Friday, and rounding to each supplier's rules. See exactly how Posto calculates.