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Days Inventory Outstanding (DIO) from COGS and Average Inventory Calculator

DIO = (avg inventory / COGS) · 365.

Compute Days Inventory Outstanding — the average number of days a company holds inventory before selling it. DIO = (average inventory / COGS) × 365. Component of the cash-conversion cycle alongside DSO (receivables days) and DPO (payables days). Industry-specific; retailers ≈ 30, manufacturers ≈ 60-120.

Nadia Almasri By Nadia Almasri
Published Last reviewed 1 min read

Inputs

$ M
$ M
days

Results

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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

DIO = (Avg Inventory / COGS) · 365.

In depth

Compute Days Inventory Outstanding — the average number of days a company holds inventory before selling it. DIO = (average inventory / COGS) × 365. Component of the cash-conversion cycle alongside DSO (receivables days) and DPO (payables days). Industry-specific; retailers ≈ 30, manufacturers ≈ 60-120.