Inventory & operations

Reorder Point Calculator

Set the inventory position that triggers a replenishment order.

No sign-upBrowser-only calculationsFormula & methodology
01

Your numbers

Use one currency and the same reporting period. Sample values are filled in to help you start.

units/day
days
units

Your numbers stay in this browser.

02

Example result

Reorder point225 units
Expected lead-time demand
175 units

Inventory position includes on-hand plus on-order minus backorders. This simple model assumes stable lead time and demand.

Understand the result

How to calculate it

Reorder point = daily demand × lead time + safety stock

Inventory position includes on-hand plus on-order minus backorders. This simple model assumes stable lead time and demand.

Worked example

This is an illustrative scenario, not a market benchmark. Select “Reset to example” to reproduce it in the calculator.

Average daily demand
25 units/day
Supplier lead time
7 days
Safety stock
50 units

Reorder point: 225 units

Common questions

Reorder Point FAQ

Is the reorder point the quantity I should buy?

No. It tells you when to order. Order quantity depends on demand, storage and supplier constraints.

What does this calculation leave out?

Inventory position includes on-hand plus on-order minus backorders. This simple model assumes stable lead time and demand.

Are my inputs saved or sent to a server?

Calculations run in your browser. We do not send your inputs or results to our server or analytics. A comparison stays in this tab until it is refreshed. A CSV is saved only when you choose to download it. See our privacy policy for ordinary hosting and optional analytics data.

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