Earned Value Management Calculator
Earned value management compares the budgeted value of work performed with planned work and actual spending. Cost performance index (CPI) and schedule performance index (SPI) show two different dimensions of project performance.
How to use this calculator
- Enter values for the same reporting date, scope and currency.
- Check that units, denominator definitions and time periods are consistent before comparing scenarios.
- Run a second scenario when an assumption is uncertain.
Formula used by earned value management calculator calculator
CPI = EV / AC; SPI = EV / PV; cost variance = EV − AC; schedule variance = EV − PV; estimated cost at completion = budget at completion / CPI.
- CPI = EV / AC; SPI = EV / PV; cost variance = EV − AC; schedule variance = EV − PV; estimated cost at completion = budget at completion / CPI.
- The estimate at completion assumes current cost efficiency continues. It does not account automatically for future scope changes, risk events or revised forecasts.
- The tool performs arithmetic on the values entered and does not validate assumptions against outside records.
Worked examples
Worked example
EV €75,000, PV €80,000, AC €60,000 and BAC €100,000.
CPI = EV ÷ AC = 1.25; SPI = EV ÷ PV = 0.9375; EAC = BAC ÷ CPI = €80,000.
The project has a cost performance index of 1.25 and a schedule performance index of 0.9375.
Understanding the result
Earned value management compares the budgeted value of work performed with planned work and actual spending. Cost performance index (CPI) and schedule performance index (SPI) show two different dimensions of project performance.
The estimate at completion assumes current cost efficiency continues. It does not account automatically for future scope changes, risk events or revised forecasts.
Important notes
The estimate at completion assumes current cost efficiency continues. It does not account automatically for future scope changes, risk events or revised forecasts.
Treat this output as an estimate tied to the stated inputs. For regulated, safety-critical, tax or professional decisions, verify applicable official guidance and specifications.
Frequently asked questions
What does CPI above 1 mean?
Earned value is greater than actual cost under the entered tracking rules.
Does SPI equal calendar completion percentage?
No. SPI compares earned value with planned value; it is not necessarily a direct measure of elapsed calendar time.
How should I interpret the result?
The estimate at completion assumes current cost efficiency continues. It does not account automatically for future scope changes, risk events or revised forecasts.
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Related explanations
Learn the method behind the number or compare the terminology before using the calculator.
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This page provides a calculation tool plus explanatory information so you can understand what the result means and when the underlying method may not fit your situation.