Quick answer
How do you calculate Inventory Turnover?
Use Inventory turnover = Cost of goods sold ÷ Average inventory. Enter the matching values above to calculate the result instantly.
What it measures
Understanding Inventory Turnover
Calculate how many times average inventory is sold or used during a period. Average inventory is commonly the opening plus closing balance divided by two, though monthly averages are better when stock levels swing sharply.
Interpretation
What the result means
A result of 6 means the business sold or consumed the equivalent of its average inventory six times during the period.
Action
How to use it
Compare turns by product class and pair the result with stockouts, lead time, margin, and obsolete inventory.
Limits
What it leaves out
Industry norms vary greatly, and a very high turnover can signal understocking rather than efficiency.
The math
Inventory Turnover formula
Worked example
Example calculation
- Calculation
- $480,000 ÷ $80,000
- Result
- 6 inventory turns
Step by step
How to use this calculator
- 1Enter cost of goods sold, average inventory.
- 2Keep every input on the same time period and measurement basis.
- 3Review the result, then change one assumption at a time to test scenarios.
Decision support
When this calculator is useful
- Inventory planning
- Working-capital analysis
- Supplier negotiations
Common questions
Frequently asked questions
Which inputs should I use for Inventory Turnover?
Use cost of goods sold, average inventory, measured from the same source and period. Include only values that match the definitions shown beside each field.
Why might two Inventory Turnover calculations differ?
The systems or accounting policies may define cost of goods sold, average inventory differently. Compare the time period, scope, source, and treatment of exceptional items before comparing results.
How often should I recalculate Inventory Turnover?
Recalculate when any input changes materially and on the same reporting cadence used for the decision. Save the source and date of each input so the trend remains comparable.
Can I use Inventory Turnover by itself?
No single metric captures the full decision. Use the result with the related measures, assumptions, and limitations shown on this page.
Calculation reviewed: 2026-06-18. CalcPilot uses the formula shown above and tests representative values during the production build. See our methodology and correction policy.
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