Calculators » Converters and Miscellaneous » SPI, CPI, SV, CV Calculator and Formulas

SPI, CPI, SV, CV Calculator and Formulas

project management performance index cost variance schedule variance earned value management

This page provides a calculator for SPI, CPI, SV, and CV. It also outlines the formulas used in the calculations and includes an example.

SPI, CPI, SV, CV Calculator

Inputs

Outputs

Example Calculation

Let’s say we have the following project data:

  • EV (Earned Value) = 120,000
  • PV (Planned Value) = 150,000
  • AC (Actual Cost) = 175,000

Using the formulas, we can calculate:

  • SPI = 0.8
  • CPI = 0.6857
  • SV = -30,000
  • CV = -55,000

This calculator helps you determine Schedule Performance Index (SPI), Cost Performance Index (CPI), Schedule Variance (SV), and Cost Variance (CV) based on your project data.

SPI, CPI, SV, CV Formulas

The following formulas are used for the calculations:

SPI CPI SV CV

  • SPI (Schedule Performance Index)
  • SV (Schedule Variance)
  • CPI (Cost Performance Index)
  • CV (Cost Variance)

Understanding the Results:

  • An SPI or CPI value less than 1, or a negative SV or CV, indicates potential problems with the project’s schedule and cost.
  • SPI < 1 and SV negative: The project is behind schedule.
  • CPI < 1 and CV negative: The project is over budget.

Key Terms:

  • EV (Earned Value) = BCWP (Budgeted Cost of Work Performed): The value of the work performed at the budgeted cost.
  • PV (Planned Value) = BCWS (Budgeted Cost of Work Scheduled): The value of the work scheduled to be completed at the budgeted cost.
  • AC (Actual Cost) = ACWP (Actual Cost of Work Performed): The actual cost incurred for the work performed.