Free tool
Inventory turnover calculator
Find out how many times a year you sell through your stock, and how many days an average item sits before it sells.
days
RESULT
- Average inventory
- 500,000
- Days of inventory
- 61 days
- Inventory turnover
- 6.0×
How it works
- Average inventory = (opening stock + closing stock) ÷ 2, both at cost.
- Inventory turnover = cost of goods sold ÷ average inventory.
- Days of inventory = days in the period ÷ inventory turnover.
StashBill does this automatically for every item and invoice. See all features or try the other free tools.
Frequently asked
Cost of goods sold. Stock is valued at cost, so dividing sales revenue (which includes your margin) by it overstates turnover.
It depends on what you sell — groceries turn far faster than furniture or spare parts. Compare against your own past years and break it down by category to find what's slowing you down.
Yes — enter the cost of goods sold and stock values for that period, and set the number of days to match. A 90-day quarter works the same way.
Coming soon to Android, iOS, Windows & macOS
StashBill is in final development. It will be free forever for one device — no card required.