Inventory Turnover Calculator

Calculate inventory turnover ratio and days of inventory on hand. 🔒 Runs in your browser

Inventory turnover–
Days of inventory–
Formulas
  • Inventory turnover = COGS ÷ Average inventory
  • Days of inventory = 365 ÷ Turnover

How to use the Inventory Turnover Calculator

  1. Choose your currency if the calculator uses amounts.
  2. Enter your own numbers in the fields (the examples are only a starting point).
  3. Results update instantly as you type.
  4. Check the formulas below the results, and copy the results to share them.

About this tool

Inventory turnover shows how many times you sell through your stock in a year. Low turnover ties up cash in products that are not selling.

Frequently asked questions

How do I calculate average inventory?

(Inventory at the start of the period + inventory at the end) ÷ 2.

Are my numbers saved or sent anywhere?

No. Everything is calculated in your browser; only your currency choice is remembered on this device.

Is the Inventory Turnover Calculator free?

Yes. The Inventory Turnover Calculator is completely free to use, with no sign-up and no limits on normal use.

Is my data safe?

Yes. This tool runs entirely in your web browser using JavaScript. Your text is never uploaded to our servers.

Does it work on mobile?

Yes, it works in any modern browser on phones, tablets and computers. No app to install.

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