Inventory Turnover Calculator
Inventory turnover estimates how many times average inventory is sold or used during a period. Pairing turnover with days inventory on hand can help compare stock movement, provided the accounting values are measured consistently.
How to use this calculator
- Enter cost of goods sold for the period and average inventory value measured on a compatible accounting basis.
- Review the worked annual turnover example and compare its arithmetic with the inputs you plan to use.
- Change one input at a time when exploring a different scenario, and keep units and assumptions consistent.
Inventory turnover
Inventory turnover = cost of goods sold ÷ average inventory; approximate days on hand = days in period ÷ turnover.
- A zero turnover result means the simple days-on-hand division is not defined; turnover is an accounting indicator rather than a universal target.
- The page's numerical output is calculated from the values entered; it does not independently verify whether those inputs fit the real-world situation.
Worked examples
Annual turnover example
Annual cost of goods sold is €240,000 and average inventory is €40,000.
€240,000 ÷ €40,000 = 6 turns per year; 365 ÷ 6 ≈ 60.8 days
Inventory turns about six times per year, equivalent to roughly 61 days on hand.
Understanding the result
Higher turnover can indicate faster movement, but an overly high rate can also reflect insufficient stock.
Industry, product life cycle, stockouts, seasonality, and valuation method affect comparisons.
Important notes
Compare businesses only when cost definitions, periods, and inventory valuation methods are comparable.
Displayed values may be rounded for readability. Keep appropriate precision for intermediate calculations and check the unit labels before using the result.
Frequently asked questions
What does the Inventory Turnover Calculator result mean?
Higher turnover can indicate faster movement, but an overly high rate can also reflect insufficient stock.
What should I check before using the inventory turnover calculator?
Compare businesses only when cost definitions, periods, and inventory valuation methods are comparable.
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Related explanations
Learn the method behind the number or compare the terminology before using the calculator.
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This page provides a calculation tool plus explanatory information so you can understand what the result means and when the underlying method may not fit your situation.