Analyse any product across 10 supply chain dimensions — demand, risk, variability, forecast error, supply parameters, transportation, warehousing, production, optimisation, and decision speed. Get an instant health score and actionable recommendations.
Mathnal's Inventory Diagnostic Tool is a free browser-based 10-dimension inventory health check. It calculates safety stock, reorder point, ABC-XYZ classification, dead-stock risk, fill rate, service level, demand variability and inventory turnover for any SKU — in under 5 minutes, with no signup and no data upload.
Quick Start: Load sample products to see the diagnostic dashboard in action.
Mathnal's inventory diagnostic tool scores any SKU across 10 supply chain dimensions and computes safety stock, reorder point, ABC-XYZ class and dead-stock risk in under five minutes — free, in your browser, with no signup.
An inventory health check is a diagnostic that measures how well a product or SKU is being managed across demand, supply, forecasting and warehousing. Instead of a single number, it scores multiple dimensions — demand variability, forecast error, lead-time reliability, service level and more — to reveal where excess capital is locked up and where stockout risk is highest. This tool produces a composite 10-dimension health score plus specific, actionable fixes.
Safety stock is the buffer that protects against demand and lead-time variability. The standard formula is SS = Z × √(LT × σ²demand + demand² × σ²LT), where Z is the service-level z-score (1.65 for 95%, 2.33 for 99%). This tool calculates it automatically from your demand history, lead time and target service level, so you don't need to build the spreadsheet yourself.
ABC-XYZ is a two-axis segmentation: ABC ranks SKUs by value (A = high, C = low) and XYZ ranks them by demand variability (X = stable, Z = volatile). The 9-cell matrix tells you which items deserve tight control and high service levels (AX) versus which can run lean (CZ). The tool assigns each SKU its cell automatically.
Inventory planners, demand planners, supply chain analysts, operations managers and small-business owners who want a fast, evidence-based read on inventory health without expensive software. It is also a practical teaching aid for supply chain students learning safety stock, reorder points and service-level theory.
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