Days Inventory Outstanding (DIO)
Calculate Days Inventory Outstanding (DIO) instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.
Days Inventory Outstanding (DIO)
Avg inventory
COGS/year
DIO
36.5days
More about: Days Inventory Outstanding (DIO)
What it calculates
The “Days Inventory Outstanding (DIO)” calculator computes DIO in days from 2 parameters: avg inventory, cogs/year.
Applied in business management, unit economics, and financial modeling.
Example calculation
With parameters Avg inventory = 200,000, COGS/year = 2,000,000 the result is 36.5 days.
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.