September 22, 2020 By Liz Hunt

Your company’s inventory-to-sales ratio compares the value of items you have in stock to the overall value of your sales. This financial metric, closely linked to your inventory turnover rate, is a crucial indicator of when you need to move inventory more quickly. However, planning to sell more inventory and actually seeing a boost on your balance sheet are two different things.

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Find out more about inventory management and how to effectively use your inventory-to-sales ratio.

Why is the inventory-to-sales ratio important?

The inventory-to-sales ratio measures how efficiently a business converts inventory into revenue by comparing the amount of inventory a company holds to the amount it sells during a given period. Since inventory is a significant investment for many small businesses, this ratio can provide valuable insight into whether products are moving at a healthy pace or sitting in storage longer than expected.

Unlike some other metrics, a higher inventory-to-sales ratio isn’t necessarily a good thing. It may indicate that inventory is outpacing sales, tying up cash in unsold product. Conversely, a lower ratio may indicate strong sales performance or lean inventory management, though it can also signal that stock levels may be too low to meet demand. However, neither a high ratio nor a low ratio is inherently good. Instead, the ratio should be viewed alongside other metrics to get a full picture of the company’s health.

Lenders and potential partners may also review this metric when evaluating a company’s financial health. Inventory that moves consistently through the sales cycle generally signals efficient operations and reliable revenue generation.

Seven crucial questions for understanding the inventory-to-sales ratio

Answering these seven questions can help you understand your inventory-to-sales ratio.

1. What do you need to calculate the inventory-to-sales ratio?

You need to know two things to calculate your inventory-to-sales ratio: average inventory and net sales. Once you have those pieces of data for the period that you’re evaluating, you can calculate the ratio.

2. What is the inventory-to-sales ratio formula?

To calculate your inventory-to-sales ratio, simply divide your net sales by your average inventory for the period that you’re evaluating.

3. Why do inventory turns matter?

Inventory turnover is the number of times per year you sell all of your inventory. This figure is important to know because it reflects how much cash you have on hand to cover expenses. If your company has a low inventory turnover, it means sales are too slow to keep pace with inventory costs. When there is less money coming in and more money tied up in inventory, you may run into cash flow problems that make it difficult to pay employees and suppliers and meet other obligations.

4. What is the best inventory-to-sales ratio?

Experts typically recommend keeping your inventory-to-sales ratio between 16.7% and 25%.

Your company’s revenue is positive when sales exceed the cost of your inventory. A ratio above 25% may indicate slow sales and overstocking issues. Conversely, a rate below 16% may indicate missed sales due to insufficient inventory.

5. What should be done to combat a bad inventory-to-sales ratio?

The first step is to try to understand what is slowing your company’s sales. In some cases, targeted promotions, discounts, or bundled offers can help move existing inventory and generate short-term revenue. Businesses might also experiment with pre-orders or limited-time campaigns to encourage customer demand and reduce excess stock.

Adjusting purchasing habits may also help restore balance. Instead of buying large quantities less frequently, some companies shift toward smaller, more frequent orders. This approach may help reduce the amount of cash tied up in unsold inventory while allowing the business to adapt more quickly to changes in customer demand. It can also create space for higher-performing products that may generate stronger sales.

It’s important to understand that your inventory-to-sales ratio shouldn’t be evaluated in isolation, which means that calling your ratio “bad” should be based on data gathered over an extended period. Sales fluctuate, which can make a ratio look better or worse than it is if you only consider a short, isolated period in your evaluation.

6. Why is a smaller inventory-to-sales ratio better?

In many cases, a lower inventory-to-sales ratio suggests that a business is selling products at a healthy pace relative to the amount of inventory it holds. When inventory moves efficiently through the sales cycle, less capital is tied up in unsold goods, and storage costs are typically lower. This can support stronger cash flow and help businesses reinvest more quickly into purchasing new inventory or supporting other operational needs.

However, what counts as a “good” ratio can vary significantly by industry type and business model. Retail businesses with fast-moving consumer goods may operate with very low ratios because products sell quickly while companies with longer sales cycles or specialized inventory may naturally carry higher ratios. For that reason, businesses often benefit from comparing their ratio to historical performance and industry benchmarks rather than relying on a single universal target.

7. Can the inventory-to-sales ratio ever be too high?

Yes, the inventory-to-sales ratio can also be too high. When the ratio rises above a typical benchmark range, it often signals that a business is holding more inventory than it sells in a given period. Excess inventory can tie up working capital, increase storage and handling costs, and raise the risk of products becoming obsolete. At the same time, the ideal range can vary by industry and product type, so businesses should compare their ratio against historical performance and industry norms rather than relying on a single universal benchmark.

What is the 80/20 rule for the inventory sales ratio?

According to the 80/20 rule as it applies to the inventory-to-sales ratio, you should assume that 80% of the sales come from 20% of your inventory. This assumption can be crucial for managing your inventory to maximize your sales. When buying new stock, prioritize the 20% of inventory that drives sales before restocking the other 80%.

Inventory management is key to a good inventory-to-sales ratio

Maintaining a healthy inventory-to-sales ratio starts with strong inventory management practices. Today, many businesses rely on digital inventory systems, point-of-sale integrations, and real-time analytics to track which products sell consistently, how quickly inventory moves, and to reorder. These tools may help owners identify top-performing products, avoid over-ordering slow-moving items, and adjust purchasing decisions based on actual sales data rather than guesswork.

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Whether you need to invest in more inventory or upgrade your inventory management systems, obtaining outside funding may help. See if you pre-qualify for a loan today.