Free · Operations · No account needed
Inventory reorder calculator
Find a reorder point and a suggested order quantity from stock and lead time.
Your inputs
Starting values are examples, not recommended rates.
Your estimate
- Reorder point
- 90units
- Inventory position
- 50units
- Reorder status
- At / below reorder point
- Suggested order now
- 270units
Whole-unit quantities are rounded up. Uses constant demand; no seasonal forecast, minimum order size or supplier pack-size rule.
How this tool works
Reorder point = daily usage × lead-time days + safety stock. Inventory position = on-hand + on-order − backorders. Suggested order tops up to target-days demand plus safety stock.
What should I check before using the result?
Whole-unit quantities are rounded up. Uses constant demand; no seasonal forecast, minimum order size or supplier pack-size rule.