Lead Time

Lead time is a critical metric used in Supply Chain Management (SCM) and manufacturing to measure the time it takes for a product or service to be delivered from the initial order placement to its completion and delivery to the customer. It is an essential aspect of production scheduling and customer service, as lead time directly impacts customer satisfaction, inventory management, and overall operational efficiency.

Types of Lead Time

  1. Manufacturing Lead Time: Also known as production lead time, this refers to the time it takes to manufacture a product, including processing, assembly, and testing.
  2. Procurement Lead Time: Procurement lead time measures the time it takes to source and acquire raw materials or components needed for production.
  3. Delivery Lead Time: Delivery lead time encompasses the time it takes to transport and deliver finished products to the customer or end-user.

Calculating Lead Time

Lead time can be calculated in various ways, depending on the specific process or supply chain stage. The formula generally involves adding up the time spent at each stage, including processing, waiting, and transportation.

Importance of Lead Time

  1. Customer Satisfaction: Short lead times result in faster product delivery, leading to increased customer satisfaction and loyalty.
  2. Inventory Management: Managing lead times helps reduce inventory holding costs and avoids stockouts or overstock situations.
  3. Production Scheduling: Accurate lead time estimation is crucial for effective production scheduling and resource allocation.

Reducing Lead Time

  1. Process Streamlining: Identifying and eliminating bottlenecks or unnecessary steps in the production or supply chain process can reduce lead time.
  2. Supplier Collaboration: Close collaboration with suppliers can lead to shorter procurement lead times and ensure timely delivery of materials.

Lead Time Variability

It is essential to consider lead time variability, which refers to fluctuations or inconsistency in lead time. Variability can lead to uncertainties in meeting delivery deadlines and must be accounted for in production scheduling and inventory management.


Lead time is a vital performance metric in supply chain management and manufacturing. It measures the time taken from order placement to product delivery and directly impacts customer satisfaction and operational Efficiency. By understanding and effectively managing lead time, businesses can improve production schedulling, reduce inventory costs, and meet customer demands more efficiently. Implementing strategies to reduce lead time and address variability is crucial for maintaining a competitive edge in today’s fast-paced business environment.


Thousands of Success Stories Worldwide.

LEKI hellgrau
Canon Logo
Yamaha Logo
Minimax Logo


Explore the World of Digital Production.



This might also interest you.



APS and Digital Twin

Learn More

Are Your Lean Activities Effective?

Learn More

Your Lead Time Will Never Get Shorter – Because You Planned it That Way.

Learn More

Seamless “Operative” Supply Chain Planning for the Entire Value Added Chain

Learn More

Industry 4.0 and Production Scheduling

Learn More

How Can You Reduce Your Production Lead Time?

Learn More

Incorrect MRP Calculations Can Cause Both High Inventory and Frequent Missing Parts

Learn More