Inventory Shrinkage Calculator
Compare expected stock with counted stock and estimate the value difference.
Your inputs
Calculation results
Formula & assumptions
Difference = expected − counted; shrinkage percent = difference/expected × 100.
Values use the specified units. Calculations use floating-point arithmetic. Check input measurements and formula assumptions before applying the result.
Compare your scenarios
Save up to five results to compare changes side by side. Scenarios stay in this tab until you clear or reload it.
Using Inventory Shrinkage Calculator
Compare expected stock with counted stock and estimate the value difference.
- Enter expected stock, counted stock, unit value using the units printed under each field.
- Choose Calculate, or enable live updates. Review the result labels and formula assumptions.
- Save scenarios to compare up to five variations, then copy the report or download JSON or CSV.
Example
Expected stock: 1000 items Counted stock: 970 items Unit value: 4 currency units Missing stock · items: 30 Shrinkage · percent: 3 Value difference: 120
Questions & answers
What does Inventory Shrinkage Calculator calculate?
Compare expected stock with counted stock and estimate the value difference.
Which units should I enter?
Expected stock uses items. Counted stock uses items. Unit value uses currency units. Convert values to these units before calculating.
Which formula does it use?
Difference = expected − counted; shrinkage percent = difference/expected × 100.
What does the included example show?
Expected stock: 1000 items; Counted stock: 970 items; Unit value: 4 currency units. Result: Missing stock · items = 30; Shrinkage · percent = 3; Value difference = 120.
Can I compare different settings?
Yes. Save a scenario, change the inputs and save another result. Up to five scenarios are compared in this tab; they disappear when you reload or leave.
Can I export the calculation?
Copy the JSON report or download JSON and CSV with inputs, result labels and numeric values. Processing uses local JavaScript; no calculation request is sent to our server. Displayed values use up to 10 significant digits; exports retain JavaScript numeric precision.
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