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Days Inventory Outstanding Calculator

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Result

Calculated result 91.25 Based on the values entered.
↗ Finance

Days Inventory Outstanding Calculator DIO = (Average Inventory / Cost of Goods Sold) × 365. Measures how many days inventory sits in stock. — free online calculator.

Formula

DIO = (Avg Inventory / COGS) × 365
  • Days Inventory Outstanding Calculator calculates its result from Average Inventory ($), Cost of Goods Sold ($). It uses the formula DIO = (Avg Inventory / COGS) × 365. Change any input to recalculate the result instantly.
  • The main inputs are Average Inventory, Cost of Goods Sold. Enter them in the units and format shown in the calculator.
  • Use monetary amounts, rates and time periods exactly as labeled; the result reflects the assumptions entered on this page.
  • Changing any input above recalculates the result with the same calculation engine used by this page.

Example: Days Inventory Outstanding

Inputs
  • Average Inventory: 50000 $
  • Cost of Goods Sold: 200000 $

Using Average Inventory ($) = 50000, Cost of Goods Sold ($) = 200000, the calculated result is 91.25.

Sample result: Calculating…

Frequently asked questions

What does the Days Inventory Outstanding calculate?

Days Inventory Outstanding Calculator DIO = (Average Inventory / Cost of Goods Sold) × 365. Measures how many days inventory sits in stock. — free online calculator.

Which values should I enter?

Enter Average Inventory, Cost of Goods Sold using the units and format shown beside each field.

What formula does this calculator use?

The calculator uses the following relationship: DIO = (Avg Inventory / COGS) × 365.

Why might my result differ from another source?

Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.

Does the result update automatically?

Yes. Changing an input updates the result using the same calculation engine shown on this page.

Page information

Updated: October 7, 2026