Inventory calculator

Days inventory outstanding calculator

DIO = (average inventory ÷ annual COGS) × days in year. Use matching annual figures.

Inputs

Enter valid numbers. Calculations run entirely in your browser.

Results

Example

Inventory 120,000 with COGS 900,000 and 365 days → DIO ≈ 48.7 days.

Explanation

Higher DIO means inventory turns slower; compare within your industry band.

FAQ

Seasonal inventory?

Use rolling averages that reflect your cycle.

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