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Days Inventory Outstanding Calculator — result sheet
Calculate the average number of days inventory remains outstanding from average inventory and cost of goods sold.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: DIO=average inventory/COGS×days in period.
The ratio converts inventory relative to period COGS into the selected day convention.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Average inventory — minimum 0; maximum 1000000000000
- Cost of goods sold — minimum 1.0E-6; maximum 1000000000000
- Days in period — minimum 1; maximum 366
Worked example
| Input | Value |
|---|---|
| Average inventory | 180000 |
| Cost of goods sold | 900000 |
| Days in period | 365 |
DIO =73 days.
Assumptions and limits
- Inventory and COGS use one currency and compatible reporting periods; COGS is positive.
- The selected day count represents the reporting period.
- Seasonality, costing method, stockouts, lead times, and operating advice are not modeled.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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