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How to Calculate Days Inventory Outstanding DIO

But it’s still important for you and relevant team members to know how to calculate your DIO so that you understand what it’s saying conceptually. days inventory outstanding (DIO) is one of many critical business metrics that highlight the importance of inventory management in your larger operation. It’s another reporting tool with which to measure the overall health of your organization.

  1. All of these issues are often detrimental to a business’s overall productivity and performance.
  2. Conclusions can likewise be drawn by looking at how a particular company’s DIO changes over time.
  3. If you want to start optimizing today while also integrating financial accounting, reports, and statement analysis, book a demo with us and see how our software can help you take control of your inventory.
  4. Additionally, there is a cost linked to the manufacturing of the salable product using the inventory.
  5. But whereas inventory turnover ratio provides the number of times you turn inventory over during a specified period of time, your DIO refers to the number of days for one complete turnover.
  6. This means it takes Retailer1 about 52 days on average to clear its inventory.

For example, if you’re calculating DIO at the end of the year, you’ll take your beginning inventory total, and your ending inventory total, and divide that by 2 to get your average inventory. It’s easy to find out by calculating the Days Inventory Outstanding metric, a financial ratio designed to help both management and investors have a better understanding of how quickly inventory can be turned into sales. This means it takes Retailer1 about 52 days on average to clear its inventory. It means that, at the current status quo, you can expect to sell out and restock on your inventory about twice per quarter. For a retail store, a DIO of 52 provides tons of agility and flexibility to try out new products and plan for seasonality.

All of these issues are often detrimental to a business’s overall productivity and performance. However, the Days Inventory Outstanding ratio goes a step further by setting that figure into a daily context and providing a more accurate picture of the company’s inventory management and overall efficiency. Even with a high turnover ratio, a company may occasionally experience sales declines if the demand for a product exceeds the inventory on hand. This confirms the need for contextualizing these numbers by contrasting them with those of industry competitors. If the historical inventory days metric remains constant, the historical average can be used to project the inventory balance. But the best way to manage your inventory is to modernize your company’s inventory management process.

The point of these examples is to highlight how important it is to realize the uniqueness of your business. Concepts such as DIO, profit margins, cost of goods sold, and accounts receivable are valuable ones on which to base your decision-making. But every business has nuances within each metric that are critical for owners and operators to understand. Based on that information, we can calculate the inventory by dividing the $100mm in COGS by the $20mm in inventory to get 5.0x for the inventory turnover ratio in 2020. An increase in an operating working capital asset, such as inventory, represents an “outflow” of cash.

More Informed Product Pricing

However, there’s only one formula for calculating your days inventory outstanding. DIO stands for “Days Inventory Outstanding”, and measures the number of days required for a company to sell off the amount of inventory it has on hand. One must also note that a high DSI value may be preferred at times depending on the market dynamics.

Days Inventory Outstanding Is a Key Piece in Managing Inventory

Besides his extensive derivative trading expertise, Adam is an expert in economics and behavioral finance. Adam received his master’s in economics from The New School for Social Research and his Ph.D. from the University of Wisconsin-Madison in sociology. He is a CFA charterholder as well as holding FINRA Series 7, 55 & 63 licenses.

While live inventory management software can help sort things out, it’s even more useful for owners and operators to understand these key terms. You should be relying on your inventory management software for critical measures such as DIO. It’s faster, removes human error, and offers a plethora of measures in easy-to-digest formats.

DSI vs. Inventory Turnover

Since DSI indicates the duration of time a company’s cash is tied up in its inventory, a smaller value of DSI is preferred. A smaller number indicates that a company is more efficiently and frequently selling off its inventory, which means rapid turnover leading to the potential for higher profits (assuming that sales are being made in profit). On the other hand, a large DSI value indicates that the company may be struggling with obsolete, high-volume inventory and may have invested too much into the same.

Another consideration is that some types of business will see seasonal fluctuations in demand for products, meaning that DIO may vary at different times of the year. It’s important to remember that days inventory outstanding and inventory turnover are two different metrics that provide different information. DIO measures how long it takes to sell inventory, while turnover measures how often inventory is sold.

What Is a Good Days Sale of Inventory Number?

While the DSO ratio measures how long it takes a company to receive payment on accounts receivable, the DPO value measures how long it takes a company to pay off its accounts payable. Days inventory outstanding (DIO) is a working capital management ratio that measures the average number of days that a company holds inventory for before turning it into sales. The lower the figure, the shorter the period that cash is tied up in inventory and the lower the risk that stock will become obsolete. Days inventory outstanding is also known as days sales of inventory (DSI) and days in inventory (DII). Inventory forms a significant chunk of the operational capital requirements for a business. By calculating the number of days that a company holds onto the inventory before it is able to sell it, this efficiency ratio measures the average length of time that a company’s cash is locked up in the inventory.


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