Cycle time is the average time it takes to complete one unit of a product or service, from the moment work begins on it to the moment it’s finished.
It’s a key metric in lean manufacturing, project management, and software development, used to measure the efficiency of a process.
A shorter cycle time generally indicates a more efficient workflow.
How to Calculate Cycle Time?
The most common formula for calculating average cycle time is:
Cycle Time = Net Production Time / Number of Units Produced
Net Production Time: This is the total time spent actively working on production. It excludes any major downtimes, such as lunch breaks, equipment maintenance, or shift changes.
Number of Units Produced: This is the total number of finished items or tasks completed within the measured net production time.
For example, if a team works for 8 hours (480 minutes) and produces 200 items, the calculation would be: 480 minutes/200 items=2.4 minutes per item
This means the average cycle time for one item is 2.4 minutes.
Cycle Time vs. Lead Time
While often used interchangeably, cycle time and lead time measure different aspects of a process.
- Cycle Time: Focuses on the internal production process. It starts when work begins and ends when the item is completed. It’s about the team’s efficiency and how quickly they can produce something.
- Lead Time: Focuses on the customer’s experience. It measures the entire duration from when a customer places an order to when they receive the final product. Lead time includes all waiting times and non-production delays, such as time in a queue, shipping, and delivery.
Think of it this way: Cycle time is the time spent in the kitchen actually cooking the meal. Lead time is the total time from the moment the customer orders the meal until it’s served to their table.