Translate signs first
Before solving, know whether positive, negative, above 1.0, or below 1.0 indicates a problem.
PMP formulas cheat sheet
Memorize fewer formulas by knowing what each one is trying to tell you.
PMP formula practice should support decision-making, not become the whole study plan. Use this sheet to review the formulas most candidates expect to see, then drill explanations in the free PMP practice workspace.
Formula table
Core PMP formulas to review
| Formula | Meaning | Plain-English use |
|---|---|---|
| CV = EV - AC | Cost variance | Positive means under budget; negative means over budget. |
| SV = EV - PV | Schedule variance | Positive means ahead of planned value; negative means behind plan. |
| CPI = EV / AC | Cost performance index | Above 1.0 means cost-efficient; below 1.0 means cost-inefficient. |
| SPI = EV / PV | Schedule performance index | Above 1.0 means progressing faster than planned; below 1.0 means slower. |
| EAC = BAC / CPI | Estimate at completion | Forecast total cost when current cost performance is expected to continue. |
| TCPI = (BAC - EV) / (BAC - AC) | To-complete performance index | Shows the efficiency needed on remaining work to finish on the original budget. |
| Channels = n(n - 1) / 2 | Communication channels | More stakeholders can sharply increase communication complexity. |
| PERT = (O + 4M + P) / 6 | Three-point estimate | Weights the most likely estimate more heavily than optimistic or pessimistic cases. |
| EMV = probability x impact | Expected monetary value | Compares risk choices using weighted financial exposure or opportunity. |
Study tips
How to drill PMP formulas
Connect to decisions
The exam often cares what the project manager should do next, not only the calculation.
Use short drills
Formula recall works best as repeated small practice sessions mixed with scenario questions.
This cheat sheet is an independent study aid. It does not reproduce official PMI exam questions or official PMI copyrighted prep content.