Days Inventory Outstanding

Days Inventory Outstanding

Days Inventory Outstanding Meaning

Days Inventory Outstanding (DIO), sometimes known as Days Sales of Inventory (DSI). Days Inventory Outstanding is a financial ratio that measures the average number of days of inventory held by the firm before selling it to consumers, providing a clear picture of the cost of holding and probable reasons for inventory delays.

Every company’s job is to turn inventories into finished goods. The corporation will be unable to sell and generate money until the final goods are available. That is why it is critical for an investor to consider how long it takes a firm to convert its inventory into revenue.

A decreasing ratio over time might suggest that a corporation is selling goods at a faster rate. A growing ratio, which is normally a poor indicator, might suggest that a corporation kept its outstanding inventory for a longer period of time than usual.

DIO is an important component of the Cash Conversion Cycle (CCC), which determines how long cash is held in working capital.

Days Inventory Outstanding Formula

The following is the formula for days inventory outstanding (DIO):

Days Inventory Outstanding = (Average inventory / Cost of sales) x Number of days in the period

Average inventory = (Beginning inventory + Ending inventory) / 2

Cost of Sales = It is sometimes referred to as Cost of Goods Sold.

The number of days in period = it refers to the number of days in the period being evaluated, such as an accounting period; the period could be any time frame a week, a quarter, or annually.

Days Inventory Outstanding and Cash Cycle

The cash conversion cycle is made up of three parts.

The first is Days Sales of Inventory (DSI) or Days Inventory Outstanding (DIO). Days sales outstanding and days payable outstanding are the other two.

Days sales of inventory are one of the steps in the cash conversion cycle, which converts raw supplies into cash.

The formula shows that inventory is split by the cost of items sold. It aids us in understanding the proportion of raw materials in overall sales cost. The percentage is then multiplied by 365 days, (the period could be any time frame a week, a quarter, or annually) allowing us to view it in terms of days.

How to Calculate Days Inventory Outstanding


Mr. A owns a grocery shop. His business, a private vendor of foodstuffs to a huge suburb, has become a household brand in the neighborhood. Mr. A is currently looking for a DIO for his business as well as product lines.

Mr. A starts by speaking with his accountant. This day’s inventory outstanding analysis is performed by the accountant, who is an expert in his field:

On average, Mr. A’s store has $2,500 in inventory and $25,000 in the cost of goods sold.

Inventory days outstanding = (2,500 / 25,000) * 365 

                                            = 37 days

Mr. A’s shop is keeping up with the national grocery store industry. However, in his current form, Mr. A’s business may use a little tidying up. Mr. A thinks about possibilities like clearance item discounts or running coupons on things he wants to sell quickly. These promotions, which may include decreased pricing, may result in the inventory turnover that Mr. A wants.

Mr. A now relies on his bookkeeper to provide him with up-to-date information on his day’s inventory outstanding for certain product lines. Mr. A gives himself enough time to uncover these metrics and is certain that with the appropriate team, perspective, and motives, he can expand his shop even further.

Reducing days inventory outstanding is simply one of many methods to boost a company’s cash flow.

Days Inventory Outstanding Interpretation

To begin with, days inventory outstanding (DIO) is a measure of a company’s inventory management performance.

So, if a company’s days inventory outstanding are low, it suggests two things:

  • To begin with, a low DIO indicates that the firm has been making good use of its inventory.
  • Second, low DIO may indicate that the corporation has not been holding enough inventory to meet demand, or that the company has been undervaluing its inventory.

On the other hand, we must consider the high day’s inventory outstanding. High days inventory outstanding also indicates two things:

  • Inventory of High Days Outstanding indicates that the corporation has not been able to swiftly convert its inventory into revenues.
  • It might also imply that the corporation has been stockpiling outdated merchandise.

What Does Days Inventory Outstanding Tell You?

As DSI reflects the amount of time a company’s cash is locked up in its inventory, a lower DSI rating is better. A lower figure suggests that a corporation is selling its goods more effectively and often.

The DSI is a measure of a company’s inventory management performance. Inventory accounts for a sizable portion of a company’s operational capital requirements. This efficiency ratio calculates the average amount of time a company’s cash is tied up in inventory by counting the number of days a company holds onto goods before selling it.

What is Days Inventory on Hand?

Days Inventory on Hand is the same as days inventory outstanding.  It is a financial ratio that measures the average number of days of inventory held by the firm before selling it to consumers.

Days Inventory Outstanding Vs Days Sales Outstanding

 DIO stands for days inventory, or how long it takes to sell the full inventory. The fewer the digits, the better. Days sales outstanding (DSO) is the number of days required to collect on sales.

Days Inventory Outstanding Vs Inventory Turnover

Inventory turnover measures how rapidly a company’s inventory can be sold (turnover). Meanwhile, days of inventory (DSI) examines the average time it takes a corporation to convert its inventory into revenue.

Essentially, DSI is the number of days it takes to convert inventory into sales, whereas inventory turnover is the number of times inventory is sold or utilized in a year.

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