PMP Formulas Cheat Sheet


Last Updated on January 31, 2021 by andrewshih

PMP Formulas Cheat Sheet

The PMP cheat sheet is aligned with PMP PMBOK 6 and includes the PMP exam formulas that you will need to know to pass the PMP exam.

Cost Management Formulas

PV Planned Value
EV Earned Value
AC Actual Cost
BAC Budget at Completion
EAC Estimate at Completion

Use the chart to help you understand the cost management formulas.

PMP Cost Management Chart

Cost Variance: CV = EV – AC
The amount of budget deficit or surplus + = Under planned cost
0 = On planned cost
– = Over plan cost
Schedule Variance: SV = EV – PV
The amount by which the project is ahead or behind the planned delivery date. + = Ahead of Schedule
0 = On Schedule
– = Behind Schedule
Variance at Completion: VAC = BAC – EAC
A projection of the amount of budget deficit or surplus. + = Under Planned Cost
0 = On Planned Cost
– = Over Planned Cost
Cost Performance Index: CPI = EV / AC
Shows the percentage of how much costs are over or under the amount of work accomplished. Greater than 1.0 = Under planned cost
1.0 = On planned cost
Less than 1.0 = Over planned cost
Schedule Performance Index: SPI = EV / PV
A measure of schedule efficiency. Greater than 1.0 = Ahead of Schedule
1.0 = On Schedule
Less than 1.0 = Behind Schedule
Estimate at Completion: The expected total cost of completing all work expressed as the sum of the actual cost to date and estimate to complete.
EAC = AC + ETC If the initial plan is no longer valid. Use new estimate.
EAC = AC+BAC-EV If the future work will be accomplished at the planned rate, use the remaining budget.
EAC = BAC/CPI If CPI is expected to be the same for the remainder of the project.
EAC = AC+(BAC-EV)/(CPI*SPI) If both CPI and SPI influence the remaining work.
Estimate to Complete: The expected cost to finish all remaining project work.
ETC = EAC – AC Assuming the work is proceeding on plan
To Complete Performance Index: A measure of the cost performance that must be achieved with the remaining resource in order to meet a specific management goal.
TCPI = remaining work/budget available Greater than 1.0 = Harder to complete
1.0 = Same to complete
Less than 1.0 = Easier to complete
TCPI = (BAC-EV)/(BAC-AC) The efficiency that must be maintained in order to complete on plan
TCPI = (BAC-EV)/(EAC-AC) The efficiency that must be maintained in order to complete the current EAC.

Schedule Management Formulas

PERT Weighted Average = (O+4M+P)/6
PERT Standard Deviation = (P-O)/6
Project Evaluation & Review Technique for estimating activity duration.
O=optimistic, M=Most likely, P=Pessimistic
Float (or slack) = LS – ES
Float (or slack) = LF – EF
LS = Late Start
ES = Early Start
LF = Late Finish
EF = Early Finish

Communication Management Formulas

Communication Channels = N(N-1)/2


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Additional PM Exam Resource

In additional to this PMP Formulas Cheat Sheet, you may want to check out the resource page for recommended resource and links to a collection of free exam questions.  If you are looking for a study guide, check out the PMP Study Guide with Pros/Cons of most popular PMP books including Rita Mulcahy, Andy Crowe, and Head First PMP.

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