About this tool
Estimate a reorder trigger from demand, replenishment lead time and the safety-stock assumptions entered. Use it to plan a stock review rather than treating one historical average as a permanent ordering rule.
Calculations and file processing run in this browser tab. The tool does not send working inputs or files to our hosting server.
मुख्य इनपुट और नियंत्रण हिंदी में देखने के लिए ऊपर “🇮🇳 हिंदी में देखें” चुनें। गणना और फ़ाइल प्रोसेसिंग इसी ब्राउज़र टैब में होती है; टूल आपके इनपुट हमारी होस्टिंग पर नहीं भेजता।
Features
- Work with Average Daily Units Sold; Maximum Peak Daily Units Sold; Average Supplier Lead Time (Days).
- Review Lead Time Demand; Safety Stock Buffer; Reorder Point (ROP) in the result breakdown.
Benefits
- Make the lead-time demand allowance visible.
- Compare different safety-stock assumptions.
Who should use this tool?
- Sellers managing repeat stock.
- Warehouse teams reviewing reorder triggers.
How to use
- Complete the labelled fields for your scenario, including Average Daily Units Sold; Maximum Peak Daily Units Sold; Average Supplier Lead Time (Days). Use the units shown beside each field.
- Try the example labelled “25 Avg / 40 Peak Units/Day, 14 Avg / 21 Max Lead Days” if you want to check the workflow first.
- Select Calculate / Run Tool and review Reorder Point (ROP) Trigger Level and Lead Time Demand; Safety Stock Buffer.
- Check the assumptions and limitations below. Adjust a value to compare scenarios, then copy or download the result you need.
Try these worked examples
| Scenario | Example inputs | Example result |
|---|---|---|
| 25 Avg / 40 Peak Units/Day, 14 Avg / 21 Max Lead Days | Average Daily Units Sold: 25Maximum Peak Daily Units Sold: 40Average Supplier Lead Time (Days): 14Maximum Delayed Lead Time (Days): 21 | 840 Units (Includes 490 Safety Stock) |
| 10 Avg / 15 Peak Units/Day, 7 Avg / 10 Max Lead Days | Average Daily Units Sold: 10Maximum Peak Daily Units Sold: 15Average Supplier Lead Time (Days): 7Maximum Delayed Lead Time (Days): 10 | 150 Units (Includes 80 Safety Stock) |
Reference and processing
Standard Supply Chain Inventory Management Formula · Listed applicability: 2025-2026
Calculations and file processing run in this browser tab. The tool does not send working inputs or files to our hosting server.
FAQs
Does this automatically place a purchase order?
The output is a planning estimate. It does not monitor live stock or place an order. Review current inventory, open purchases and changes in demand before acting.
Which inputs do I need for Inventory Reorder Point (ROP) & Safety Stock Calculator?
Use Average Daily Units Sold; Maximum Peak Daily Units Sold; Average Supplier Lead Time (Days); Maximum Delayed Lead Time (Days). The built-in examples show how those fields fit together.
What should I check before using this result?
Add extra lead-time buffer before major Indian festive sales (Big Billion Days / Great Indian Festival). Check the assumptions and output against your intended task before relying on the result.
What happens to the information I enter?
Calculations and file processing run in this browser tab. The tool does not send working inputs or files to our hosting server. Tool favourites save only tool IDs in this browser. Sharing sends the tool link, not your working values or files.