Business calculator
Free Inventory Turnover Calculator
Measure how frequently inventory is sold through using COGS and average inventory.
Inventory Turnover Calculator
Enter values to see a focused result. Invalid or incomplete inputs remain blank rather than producing NaN or Infinity.
Understand the result
See how frequently inventory is sold through
Inventory turnover divides cost of goods sold by average inventory. It helps relate the cost of inventory sold to the inventory held during the same period.
Focused formula
The result uses only the inputs relevant to this business question.
Private in your browser
Values are calculated locally and are not stored or sent anywhere.
Use the calculator
Enter the figures you already have
- 1
Add your inputs
Use the labels and period shown in the form.
- 2
Review the math
Results update as your assumptions change.
- 3
Apply the result
Use it as a planning reference for the next decision.
Average inventory
Average inventory is beginning inventory plus ending inventory divided by two. Keep the inventory balances and COGS period-aligned.
Interpret with context
A higher or lower turnover is not universally good. Product type, seasonality, stockout risk, purchasing terms, and industry norms all affect the useful range.
Worked example
$600,000 COGS divided by average inventory of $120,000 equals 5 turns. Days inventory is 365 ÷ 5 = 73 days.
Frequently asked questions
Practical questions people ask about this tool
What are days inventory outstanding?
It estimates the average days inventory is held using 365 divided by inventory turnover.
Is a higher turnover always better?
No. Very high turnover may also signal stockout risk; interpret it with industry and service-level context.
What if average inventory is zero?
Turnover and days inventory are not calculable because the denominator is zero.
Related tools
Related business tools
Accounts Receivable Turnover Calculator
Measure receivables collection frequency.
Working Capital Calculator
Compare short-term assets and liabilities.
Gross Profit Calculator
Calculate profit before operating costs.
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