Inventory Planning
Reorder triggers, buffers, critical spares and uncertain demand.
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Safety Stock Calculator
Compare a simple maximum-usage method with a variability-based planning estimate.
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Enter your planning assumptions
The variability method uses a simplified assumption of stable lead time. It is a planning estimate, not a guarantee of service level.
How to use the result
Treat the output as a transparent planning comparison. Check the item, unit, location, status, dates and open transactions before acting. A mathematically correct result can still be operationally wrong when the inputs describe unavailable or incorrectly recorded stock.
Print or copy the result with the assumptions used. Replace estimates with verified information as receipts, counts, inspections and returns become known.
Important boundary
This calculator is not an accounting record, audit, purchase authorization, safety procedure, engineering result, stock policy or guarantee against shortages, excess, damage or loss.
Related learning
Understand the controls behind the number
Inventory Control
Availability, statuses, units, movements and transfers.
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Counts, variances, shrinkage and approved adjustments.
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