Inventory Management Templates
Reorder Point Calculator (Excel)
Calculate reorder points for up to 50 SKUs using the statistical safety-stock formula. Each SKU can have its own service level, lead time and demand variability.
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About this template
Calculate reorder points for up to 50 SKUs using the statistical safety-stock formula. Each SKU can have its own service level, lead time and demand variability.
What's included
- Statistical safety stock: Z × σ × √LeadTime
- Per-SKU service-level selection (90% to 99.9%)
- VLOOKUP-based Z multiplier from a built-in reference table
- Action flag (REORDER NOW / WATCH / HEALTHY) with conditional formatting
- Single-SKU what-if sheet for deep analysis on critical items
Related Calculators
Reorder Point Calculator
Set the trigger level that fires the next PO for an SKU. Reorder point combines expected demand during lead time with a buffer for the weeks that run hot. Get either half wrong and you either stock out or bury cash on the shelf. Outputs are the ROP itself, the lead-time demand behind it, the buffer as a percent of expected demand, and the days of supply that ROP represents at current sales velocity.
Safety Stock Calculator
Size the buffer that keeps shelves stocked when demand spikes or the truck runs late. Enter a target service level, your demand history, and lead time to get the exact number of units to hold above expected demand. No more guessing with "two extra weeks of supply."
EOQ Calculator
Find the order size that minimizes what you spend keeping an SKU stocked. Small orders push order cost up. Big orders push carrying cost up. EOQ finds the point where the two curves cross so you stop paying more than you have to, and it anchors every reorder point and safety stock decision downstream.
Inventory Turnover Calculator
Measure how many times a year your average inventory sells through and gets replaced. The single most consequential operational KPI in retail. It connects buying decisions, warehouse cash, markdown risk, and finance targets into one number. The turn ratio arrives converted into days and weeks of supply, together with the working capital a one-turn improvement would release.
Related Articles
Reorder Point Formula: The Operator's Guide to When to Reorder
How buyers and DC planners actually set reorder points. The formula, three what-if scenarios, service-level math by ABC class, continuous vs periodic review, and the four mistakes that turn a good ROP into a stockout machine.
Safety Stock Calculation: The Complete Operator’s Guide
How experienced retail planners actually size safety stock. Two formulas, a Z-score reference table, and the operational habits that keep the number honest.
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Inventory Tracker (Excel)
A ready-to-use Excel inventory tracker. Enter your SKUs and the workbook auto-calculates reorder points, safety stock, days of supply, ABC class and stock-status alerts.
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Safety Stock Calculator (Excel)
Compute safety stock for up to 10 SKUs by two methods, statistical and simple, then compare side-by-side. Includes a Z-multiplier lookup table for 7 service levels.
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