Free tool
Days of stock calculator
Days of stock shows how long the money in your stock stays on the shelf before it comes back as sales, and what holding more than you need costs in interest.
Opening stock + purchases − closing stock, at cost.
Your own target, such as last year's figure.
Result
- Days of stock on hand
- 61 days
- Stock turns in a year
- 6
- Cost of goods sold a day
- ₹19,726
Days of stock = stock at cost ÷ cost of goods sold a day, with a month counted as 365 ÷ 12 days. Interest is the smallest cost of extra stock; storage, damage and price drops add to it.
Next step in MatruOS
MatruOS shows days of stock for every item and lists the ones that have not moved, from your own sales and purchases.
See days of stock item by item in MatruOSKeep this result
Method
How this is worked out
Every figure the tool uses is listed here. Assumptions are fields in the tool, so you can change them to match your business.
- Cost of goods sold a day = cost of goods sold for the period ÷ days in the period, with a month counted as 365 ÷ 12 days.
- Days of stock = stock at cost ÷ cost of goods sold a day. Stock turns = 365 ÷ days of stock.
- Stock above target = stock − target days × cost of goods sold a day. Its cost here is interest only at the rate you enter, the smallest part of the cost of extra stock.
Questions
Questions people ask
What is a good number of days?
It depends on the trade and the item. Fast-moving goods turn in days; tiles or machinery parts may sit 60 to 90 days. Compare yourself month to month, and item by item.
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