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Business Calculators

Reorder Point Calculator

Verified formula Updated Jun 2026 Private — runs on your device

Enter details
days
Verified formula Private

Reorder point

450

For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.

How to use the Reorder Point Calculator

The Reorder Point Calculator works out your reorder point in an instant. Enter average daily demand, lead time and safety stock and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.

  1. Enter the average daily demand.
  2. Enter the lead time.
  3. Enter the safety stock.
  4. Read off your reorder point — the calculator updates automatically, with no button to press.

Formula

The Reorder Point Calculator uses the formula:

Reorder point = Average daily demand × Lead time + Safety stock

Worked example

For example, with average daily demand of 50, lead time of 7 days and safety stock of 100, the reorder point is 450.

Inputs used
Average daily demand 50
Lead time 7 days
Safety stock 100
Results
Reorder point 450

Results are estimates for educational use, not professional advice.

Key terms explained

Mean
The average of a set of numbers — their sum divided by how many there are.

Frequently asked questions

Multiply average daily demand by lead time, then add safety stock. At 50 a day, 7 days lead and 100 safety stock, the reorder point is 450.

It is the inventory level at which you place a new order, so stock arrives before you run out.

Safety stock buffers against demand spikes and supplier delays, reducing the risk of stockouts during the lead time.

It is the time between placing an order and receiving it. Longer lead times need higher reorder points.

Enter the average daily demand. Enter the lead time. Enter the safety stock. Read off your reorder point — the calculator updates automatically, with no button to press.

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