Inventory Period Calculator
Calculate your Inventory Period (Days Sales of Inventory) to determine how many days it takes your business to sell its entire inventory stock. Free tool.
Inventory Period Calculator
Calculate your Inventory Period (Days Sales of Inventory) to determine how many days it takes your business to sell its entire inventory stock. Free tool.
How to Use Inventory Period Calculator in 3 Easy Steps
1
Step 1
Input your Average Inventory value for the accounting period.
2
Step 2
Enter the Cost of Goods Sold (COGS) from your income statement.
3
Step 3
Adjust the days in period (typically 365) and analyze your liquidity efficiency.
Frequently Asked Questions
Generally, yes, as it means cash is tied up for fewer days. However, if the period is too low, the business risks product stockouts and lost sales due to inadequate inventory levels.
Inventory Turnover measures how many times inventory is sold and replaced over a year (e.g., 6 times). Inventory Period converts that metric into days (e.g., 365 / 6 = 60.8 days). They measure the identical underlying dynamic.
Inventory is recorded on the balance sheet at its cost, not its selling price. Using Revenue (which includes markup margins) would artificially inflate the turnover calculation. Using COGS ensures an accurate, apples-to-apples comparison.