Ecommerce Tools
Inventory Reorder Point Calculator
Estimate the inventory level that triggers replenishment using daily demand and lead time.
Result
Formula and methodology
Reorder point = Average daily demand × Lead time in days + Safety stock
Use values from consistent periods and definitions. The result changes directly with your assumptions.
Worked example
Enter the example values shown in the calculator to see a transparent planning estimate.
How to use
- Enter comparable values with the units shown.
- Select Calculate.
- Review the formula and limitations before using the result.
Frequently asked questions
What does this calculator estimate?
Estimate the inventory level that triggers replenishment using daily demand and lead time.
Is the result a forecast or guarantee?
No. It is a planning calculation based only on the assumptions entered.
Related tools
Explore Ecommerce Tools or all tools.
Disclaimer: This simplified estimate is not accounting, financial, legal, tax, payroll-compliance or investment advice.