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5 Inventory Management KPIs and Metrics for 2023 You’ve Got to Monitor

As the supply chain landscape evolves, effective inventory management is crucial for businesses to maintain a competitive edge in 2023.

Striking the delicate balance between meeting demand and avoiding overstocking necessitates a keen understanding of vital key performance indicators (KPIs) and metrics.

These metrics serve as navigational tools, steering businesses through stock levels, customer satisfaction, and operational efficiency.

Today, we uncover five indispensable inventory management KPIs and metrics for 2023, demanding your attention to successfully navigate supply and demand.

What Is a KPI in Inventory Management?

An inventory management KPI (Key Performance Indicator) is a quantifiable gauge that assesses the efficiency and effectiveness of an organization’s inventory control and supply chain processes.

These metrics offer a snapshot of inventory management performance, aiding businesses in meeting customer demands while optimizing resource allocation.

How Do You Measure Inventory Management?

Measuring inventory management involves tracking several crucial metrics. The order fill rate measures the percentage of customer orders fulfilled without stockouts, preventing potential revenue loss and customer dissatisfaction caused by unmet demands.

Monitoring levels of service provides insight into the percentage of orders completed within a defined timeframe. Replenishment lead time, the duration taken to restock inventory, is vital – longer lead times can lead to stockouts and decreased customer satisfaction.

Top 5 Inventory Management KPIs and Metrics for 2023

Key Performance Indicators (KPIs) and metrics are vital in assessing and improving inventory management strategies. Let’s delve into the top five inventory management KPIs and metrics for 2023, exploring their significance and offering strategies to optimize them.

1. Inventory Turnover

Inventory turnover is a critical metric that measures how quickly a company’s inventory is being sold and replaced over a specific period. It gauges the efficiency of inventory management by indicating whether inventory levels are too high or too low, directly impacting the company’s cash flow, operational costs, and customer satisfaction.

To calculate inventory turnover, divide the cost of goods sold (COGS) by the average inventory value:

Inventory Turnover=COGS/Average Inventory Value

Companies can leverage inventory turnover metrics in several ways:

  • Optimize Stock Levels: A higher turnover ratio suggests that products move quickly, reducing the risk of overstocking and obsolescence. Companies can adjust their reorder points and quantities to match consumer demand accurately.
  • Identify Slow-Moving Items: A low turnover ratio may indicate slow-moving or obsolete items. By identifying these products, businesses can devise strategies to promote or phase them out, minimizing carrying costs.
  • Supply Chain Efficiency: Improved inventory turnover can result from efficient supply chain management. Companies can work closely with suppliers to reduce lead times and ensure timely deliveries, enhancing overall efficiency.

2. Carrying Cost of Inventory

The carrying cost of inventory encompasses various expenses associated with storing products. It includes storage costs, insurance, taxes, depreciation, and the opportunity cost of capital tied up in inventory. This metric directly impacts a company’s profitability, as excessive carrying costs can erode margins.

Components of carrying cost:

  • Storage Costs: Expenses related to warehousing, utilities, and maintenance.
  • Insurance and Taxes: Premiums and property taxes associated with safeguarding inventory.
  • Opportunity Cost: The cost of forgoing potential investment opportunities due to capital being tied up in inventory.

Strategies to reduce carrying costs:

  • Optimize Stock Levels: Maintaining an optimal inventory level reduces storage costs and minimizes the risk of overstocking.
  • Improve Supply Chain Efficiency: Efficient supply chains lead to reduced lead times, lowering carrying costs.

3. Stockout Rate

Stockout rate measures the frequency at which a company runs out of stock on specific products, leading to lost sales and dissatisfied customers. Maintaining an acceptable stockout rate is crucial for maintaining high levels of service and customer loyalty.

To calculate stockout rate, divide the number of stockouts by the total number of inventory opportunities and multiply by 100:

Stockout Rate=(Number of Stockouts/Total Number of Inventory Opportunities)×100

Technological advancements and data analysis can prevent stockouts by:

  • Advanced Demand Forecasting: Utilizing historical sales data, consumer trends, and inventory data, companies can predict demand more accurately.
  • Inventory Management Software: Implementing inventory management solutions helps monitor stock levels, set reorder points, and automate replenishment processes.
  • Safety Stock: Maintaining safety stock levels ensures product availability even during unexpected spikes in demand.

4. Lead Time

Lead time is the duration between placing an order and receiving the inventory. It plays a significant role in inventory management as longer lead times can disrupt supply chains, lead to stockouts, and affect customer satisfaction.

Different types of lead time include supplier lead time (time taken by suppliers to deliver products) and manufacturing lead time (time taken to produce products after receiving raw materials).

Strategies to reduce lead time:

  • Supplier Partnerships: Collaborating closely with suppliers can result in shorter lead times, ensuring timely deliveries.
  • Process Optimization: Streamlining internal processes, from order placement to inventory restocking, can significantly reduce lead times.

5. Demand Forecast Accuracy

Accurate demand forecasting is essential for effective inventory planning. It helps companies avoid stockouts and overstocking, thus maintaining optimal inventory levels and customer satisfaction.

Demand forecast accuracy is calculated using the formula:

Demand Forecast Accuracy=(Number of Accurate Forecasts/Total Number of Forecasts)×100

Challenges in forecasting and consequences of poor accuracy:

  • Uncertain Consumer Behavior: Rapid consumer trends and preferences shifts make accurate forecasting challenging.
  • Lost Sales and Excess Inventory: Inaccurate forecasts can lead to missed sales opportunities due to stockouts or excessive inventory that ties up capital.

Other Inventory Management KPIs and Metrics

1. Supplier Quality Index:

The Supplier Quality Index assesses the performance of suppliers in delivering high-quality products consistently. It considers factors such as the accuracy of inventory counts, the quality of products received, and the reliability of deliveries.

This metric helps businesses ensure that the products they receive meet the required standards, reducing the likelihood of disruptions in the inventory management process due to defective or subpar items.

By monitoring the Supplier Quality Index, companies can maintain accurate inventory data and avoid accumulating surplus stock from poor-quality products.

2. Perfect Order Rate

The Perfect Order Rate measures the percentage of orders that are fulfilled accurately and on time, without any errors or discrepancies. This metric encompasses various aspects of the inventory management process, including order accuracy, on-time deliveries, and proper packaging.

A high Perfect Order Rate indicates that the company’s production schedules, inventory data, and supply chain operations are well-aligned, minimizing the chances of stockouts, out-of-stocks, and human errors. Monitoring this metric helps businesses enhance customer satisfaction and maintain efficient inventory levels.

3. Inventory Shrinkage

Inventory shrinkage refers to the loss of inventory due to theft, damage, spoilage, or errors in recording. It’s a critical metric for retailers, as it impacts the accuracy of inventory counts and can lead to excessive stockouts or the accumulation of too much inventory.

Implementing technologies like radio frequency identification (RFID) and rigorous inventory management systems can help track inventory movements accurately and identify the root causes of inventory shrinkage. By addressing these issues, businesses can optimize inventory accuracy and minimize disruptions caused by missing or inaccurate inventory data.

4. Fill Rate

The Fill Rate measures the percentage of customer orders that are fulfilled directly from the available stock without backorders or delays. It reflects a retailer’s control over its inventory levels and the company’s ability to meet customer demand promptly.

Maintaining a high Fill Rate requires accurate inventory data, efficient order processing, and a well-structured inventory management process. By consistently achieving a high Fill Rate, companies can reduce the risk of stockouts, improve customer satisfaction, and avoid the costs associated with expedited shipping and lost sales.

5. Order Cycle Time

The Order Cycle Time tracks the time it takes for a customer order to be processed, fulfilled, and delivered. This metric is closely tied to inventory management, as delays in order processing or shipment can lead to stockouts or excessive inventory accumulation.

By streamlining the order fulfillment process, optimizing inventory levels, and minimizing human errors, companies can reduce Order Cycle Time and enhance their overall operational efficiency.

A shorter Order Cycle Time also contributes to a smoother inventory turnover and more accurate demand forecasting. Incorporating these additional inventory management KPIs and metrics into a comprehensive strategy gives businesses a holistic view of their inventory operations.


Incorporating these essential inventory management KPIs and metrics into your strategy is pivotal for maintaining a competitive edge in the ever-evolving supply chain landscape. These metrics aren’t just numbers; they’re your compass to navigate the complexities of balancing supply and demand.

For businesses seeking streamlined and advanced forecasting solutions to elevate their supply chain operations, InSupply is your ultimate partner.

Whether you’re a distributor, manufacturer, or business needing precise sales forecasting, InSupply equips you with the insights and tools to drive efficiency and success. Embrace these metrics and solutions to lead your business toward supply chain triumph. Contact InSupply today!


admin - Co-founder of Insupply for ecommerce businesses, writting blogs to help merchants stay up to date and informed with everything related to logistics and operations