Inventory Turnover Calculator
Calculate inventory turnover and days inventory outstanding.
Inventory turns = COGS ÷ average inventory. DIO = 365 ÷ turns.
How to use an inventory turnover calculator
Measure inventory efficiency
Inventory turnover compares cost of goods sold with average inventory. It helps identify whether stock is moving quickly enough for the business model.
Segment the result
A company-level ratio can hide slow-moving SKUs or locations. Investigate inventory by product family, location and demand pattern when possible.
Balance efficiency with service
Lower inventory is not automatically better. Consider production continuity, lead times, service levels and supplier risk when setting targets.
Inventory turnover analysis in manufacturing
Why turnover matters
Inventory turnover helps manufacturers evaluate how efficiently stock is moving relative to cost of goods sold. The metric is especially useful when paired with SKU, location and product-family analysis.
Investigate low turnover
Low turnover can result from excess purchasing, weak demand, long lead times, product changes or production decisions. Segment the ratio to find the specific inventory creating the issue.
Balance cash and service
Improving turnover should not create stockouts or production interruptions. Use turnover alongside service, demand, lead-time and working-capital measures.