Inventory Accuracy
Definition
The degree to which recorded inventory matches what is physically present, measured by comparing system records to physical counts. It is usually expressed as the percentage of records that match within tolerance.
In Practice
Inventory accuracy is the foundation every planning calculation stands on. If the system says 200 units but the shelf holds 150, reorder points fire late, available-to-promise commits orders that cannot ship, and pickers waste time hunting phantom stock. World-class operations sustain 98 to 99.5 percent location-level accuracy.
Accuracy is built with process, not counting alone: disciplined receiving, real-time transaction scanning, controlled access to stock, and cycle counting with root-cause analysis on every variance. Measuring accuracy by count of matching records within tolerance is more honest than netting positive and negative dollar variances, which can hide large offsetting errors.
Example: a 3PL discovers its 99 percent dollar-based accuracy masks a 91 percent record-level accuracy. After introducing scan-verified put-away and daily cycle counts on fast movers, record accuracy reaches 98.5 percent and short-ship claims from its largest client fall by two thirds.
Related Calculators
Related Terms
The practice of counting a small subset of inventory locations or SKUs on a rotating schedule instead of shutting down for a full physical inventory. Discrepancies are investigated and corrected continuously.
ShrinkageThe loss of inventory between receipt and sale from causes such as theft, damage, spoilage, administrative error, or vendor fraud. It appears as the gap between recorded and actual stock.
On-Hand InventoryThe physical quantity of stock currently present in a location, regardless of whether it is committed to orders. It is what you would find if you walked out and counted the shelves.
Available-to-PromiseThe uncommitted portion of current and planned inventory that can be promised to new customer orders. ATP tells sales what can be delivered, and when, without stealing from existing commitments.