Inventory Accuracy Calculator
How closely records match reality.
Inventory record accuracy
95.2%
12 of 250 SKUs outside tolerance
How the Inventory Accuracy Calculator works
Every inventory decision assumes the numbers in your system are true. Inventory record accuracy measures whether they are — and when it drops below the mid-nineties, reorder points and forecasts are being calculated from fiction.
Not financial advice. Marketplace fees change, and they vary by country, plan and seller status. Every rate here is an editable default, not a quoted price — check the platform's current fee schedule before you price a product against it. This is not tax or business advice.
Frequently asked questions
How is inventory accuracy calculated?
Number of SKUs counted correctly ÷ total SKUs counted × 100. Most operations apply a tolerance, counting an item as accurate if it is within a small percentage, since minor variances on high-count items are inevitable.
What accuracy should I aim for?
95% or better for general operations, 98%+ where fulfilment promises depend on it. Below 90%, automated reordering starts producing decisions worse than a manual guess.
What is cycle counting?
Counting a portion of inventory continuously so everything is covered over a period, rather than shutting down for one annual count. It finds errors while they are still traceable and does not interrupt trading.
What causes poor accuracy?
Receiving errors, unrecorded damage, picking the wrong item, returns not processed back into stock, and unit-of-measure confusion between cases and units. Most are process problems rather than dishonesty.