Days Inventory Outstanding (DIO) Calculator
Part of the Working Capital and Cash Conversion Cycle (CCC). Measures the average number of days it takes for your company to turn inventory into completed customer sales.
Logistics Specifications
Carrier grade math📦 Accurate client-side logistics calculation formatted for international shipping manifests.
How to Use This Tool in 3 Easy Steps
Enter Ending Inventory Value
Input total cost value of stock in warehouses.
Enter Annual Cost of Goods Sold
Input total 12-month COGS.
Review DIO
See average days inventory sits before generating cash.
100% Private
Zero data collection
Instant Speed
<5ms client execution
Mobile Ready
Native app feel
100% Free
No account required
How accurate was this calculation for your business?
Click below to submit your verified rating. Your feedback keeps this tool 100% free and up-to-date.
Frequently Asked Questions (FAQ)
Related Shipping, Logistics & Inventory Math Tools
Economic Order Quantity (EOQ) Calculator
Calculate the ideal batch order size balancing annual ordering costs against inventory holding costs.
Reorder Point (ROP) Calculator
Calculate Reorder Point = (Daily Unit Sales × Supplier Lead Time in Days) + Safety Stock buffer.
Safety Stock Level Calculator
Calculate Z-score service level factor × standard deviation of lead time demand to prevent stockouts.
Inventory Turnover Ratio Calculator
Calculate Cost of Goods Sold (COGS) ÷ Average Inventory on Hand to measure operational efficiency.
Stockout Lost Revenue Estimator
Calculate Days Out of Stock × Average Daily Velocity × Selling Price + Amazon organic rank penalty.
Dimensional Weight (DIM) Calculator
Calculate dimensional weight: L × W × H ÷ DIM Divisor (139 for US domestic, 166 for International).