Accounting Inventory Turnover Calculator Examples
Worked inventory turnover examples show how cost of goods sold and inventory balances affect turnover and holding days.
These examples use the same three-stage approach: calculate average inventory, divide cost of goods sold by that average, then convert turnover into average days held. They illustrate annual, quarterly, and seasonal inventory situations.
Annual retail inventory example
Moderate annual cost of goods sold with inventory rising during the year.
Input Summary
Cost of goods sold
$500,000
Beginning inventory
$100,000
Ending inventory
$150,000
Period days
365 days
Calculation Breakdown
- 1Average inventory($100,000 + $150,000) / 2$125,000
- 2Inventory turnover$500,000 / $125,0004.00 times
- 3Days inventory outstanding365 / 4.0091.25 days
Result Summary
Days inventory outstanding
91.25 days
Accounting Inventory Turnover Calculator
The business has 4.00 annual inventory turns and approximately 91.3 days inventory outstanding.
Quarterly fast-moving stock example
A 90-day quarter with stable inventory and frequent sales.
Input Summary
Cost of goods sold
$180,000
Beginning inventory
$40,000
Ending inventory
$50,000
Period days
90 days
Calculation Breakdown
- 1Average inventory($40,000 + $50,000) / 2$45,000
- 2Inventory turnover$180,000 / $45,0004.00 times
- 3Days inventory outstanding90 / 4.0022.5 days
Result Summary
Days inventory outstanding
22.5 days
Accounting Inventory Turnover Calculator
Inventory turnover is 4.00 times for the quarter, with inventory held about 22.5 days.
Seasonal inventory build example
Ending inventory is much higher than beginning inventory because stock has been built up.
Input Summary
Cost of goods sold
$240,000
Beginning inventory
$60,000
Ending inventory
$140,000
Period days
180 days
Calculation Breakdown
- 1Average inventory($60,000 + $140,000) / 2$100,000
- 2Inventory turnover$240,000 / $100,0002.40 times
- 3Days inventory outstanding180 / 2.4075 days
Result Summary
Days inventory outstanding
75 days
Accounting Inventory Turnover Calculator
The business records 2.40 turns and 75 days inventory outstanding during its inventory-build period.
How to Read Your Results
Inventory turnover is a period-specific ratio; 4.00 times in a quarter is not the same as 4.00 times in a year.
Days inventory outstanding translates the turnover ratio into an average holding-time estimate.
Use the same inventory valuation method and period basis when comparing results.
Review changes in turnover alongside demand, stockouts, purchasing cycles, and product mix.
Assumptions & Important Notes
- All examples use inventory and cost of goods sold measured in the same currency and at cost.
- Average inventory is based only on beginning and ending balances.
- The reported days are estimates rather than a record of the age of every item in stock.
Related Examples
Frequently Asked Questions
What is a good inventory turnover ratio?
There is no universal target. Suitable levels vary by industry, product shelf life, supplier lead times, margins, and customer demand.
Why can a quarterly turnover ratio look high?
The ratio measures turns within that quarter. A short period can show several turns without implying the same annual result.
What does 75 days inventory outstanding mean?
It estimates that inventory was held for about 75 days on average before being sold during the selected period.
Can seasonal businesses use this calculator?
Yes, but seasonal businesses should compare equivalent periods and consider whether beginning and ending balances reflect the full period.
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