Enter the earned value and the planned progress into the Calculator. The calculator will evaluate the Schedule Performance Index.
Schedule Performance Index Formula
SPI = EV / PV
Variables:
- SPI is the Schedule Performance Index ((EV/PV))
- EV is the earned value
- PV is the planned progress
To calculate Schedule Performance Index, divide the earned value by the planned progress.
How to Calculate Schedule Performance Index?
The following steps outline how to calculate the Schedule Performance Index.
- First, determine the earned value.
- Next, determine the planned progress.
- Next, gather the formula from above = SPI = EV / PV.
- Finally, calculate the Schedule Performance Index.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
earned value = 300
planned progress = 200
FAQs about Schedule Performance Index
What is Earned Value Management (EVM)?
Earned Value Management (EVM) is a project management technique for measuring project performance and progress in an objective manner. It integrates project scope, cost, and schedule measures to help the project management team assess and measure the project performance and progress.
Why is the Schedule Performance Index (SPI) important?
The Schedule Performance Index (SPI) is a crucial metric in project management as it provides a quick snapshot of schedule efficiency. It helps project managers understand if the project is ahead, on, or behind schedule, enabling them to make informed decisions to bring the project back on track if necessary.
Can SPI be greater than 1?
Yes, an SPI greater than 1 indicates that the project is ahead of schedule. An SPI of 1 means the project is on schedule, while an SPI less than 1 suggests the project is behind schedule. Thus, an SPI value greater than 1 is generally seen as positive.
How does SPI relate to other project management metrics?
SPI is often used alongside other metrics such as Cost Performance Index (CPI) and Schedule Variance (SV) to provide a comprehensive view of project health. While SPI focuses on schedule efficiency, CPI measures cost efficiency, and SV indicates the difference in dollar terms between the work planned and the work actually performed.
