INVENTORY TOOL LIBRARY
All Inventory Tools
Use practical, decision-focused calculators to plan stock, improve inventory performance, understand costs, and reduce avoidable risk.
15 inventory tools available4 practical inventory categoriesAlways free. No sign-up required.
Tool category
Planning & Replenishment
Decide when and how much inventory to replenish.Reorder Point CalculatorKnow when to reorder based on demand, lead time, and safety stock.Safety Stock CalculatorCalculate the right buffer stock for demand and lead-time uncertainty.EOQ CalculatorFind the economic order quantity that balances ordering and holding costs.Days of Supply CalculatorEstimate how long your current inventory can support demand.
Tool category
Inventory Performance
Measure inventory efficiency, return, and product movement.Inventory Turnover CalculatorMeasure how efficiently inventory moves and how much capital is tied up in stock.GMROI CalculatorCalculate gross margin return on inventory investment.Sell-Through Rate CalculatorMeasure how much inventory sells during a period and identify slow-moving stock.Sales Velocity CalculatorMeasure how quickly products sell to support replenishment and inventory planning.
Tool category
Inventory Analysis
Prioritize, diagnose, and improve inventory quality.ABC Inventory Analysis ToolClassify SKUs by value contribution to focus management attention where it matters most.Inventory Aging CalculatorIdentify aging and slow-moving inventory before it becomes a larger cost.Dead Stock CalculatorQuantify inactive inventory and identify capital tied up in dead stock.SKU Rationalization ToolEvaluate SKU performance and assortment complexity to support portfolio decisions.
Tool category
Cost & Risk
Quantify the cost of inventory and the risk of getting stock wrong.Inventory Carrying Cost CalculatorCalculate the true annual cost of holding inventory and estimate potential savings.Overstock Cost CalculatorEstimate the cost of excess inventory, including tied-up capital and carrying costs.Stockout Cost CalculatorEstimate the financial and service impact of running out of stock.