PMP EVM Formulas Cheat Sheet: EAC, ETC, CPI, SPI (2026)

Note – The PMP Formulas Cheat Sheet 2026: The Only Math You Actually Need

Many project managers freeze when they see the math section of the PMP exam. They assume they need advanced calculus to survive. This is a massive misconception.

Earned Value Management (EVM) is not about doing complex math. It is about objective measurement. If a project manager does not understand the baseline numbers, they are simply guessing.

Basic metrics like Cost Variance (CV) and Schedule Variance (SV) only tell the team where the project has been. The real power of project management lies in predicting where it is going. That is where Estimate At Completion (EAC), Estimate To Complete (ETC), and Variance At Completion (VAC) become absolutely critical.

Mastering these specific EVM Formulas PMP candidates face is not just a requirement for passing the exam. It is a fundamental survival skill for real-world project control. Here is exactly how to decode the numbers without the anxiety.

The Foundation: Before You Can Forecast, You Must Measure

Before predicting the future, a project manager must accurately measure the past. Forecasting formulas rely entirely on three foundational pillars. If these data points are flawed, every subsequent prediction is useless.

• Planned Value (PV): The budgeted cost for the work scheduled to be completed by a specific date. This is the baseline expectation.
• Earned Value (EV): The budgeted cost of the work actually completed. This is the tangible progress.
• Actual Cost (AC): The actual money spent to achieve that Earned Value.

From these pillars, the basic variance and performance indices are born:

• Cost Variance (CV = EV – AC): A negative number means the project is over budget. A positive number means it is under budget.
• Schedule Variance (SV = EV – PV): A negative number means the project is behind schedule.
• Cost Performance Index (CPI = EV / AC): A CPI less than 1.0 indicates horrible cost efficiency. The team is burning money.
• Schedule Performance Index (SPI = EV / PV): An SPI less than 1.0 indicates slow progress.
• Plan Your Prep: Do not memorize these blindly. Understand their practical application. Map out your study strategy utilizing our blueprint on How to Create a PMP Study Plan That Will Actually Get You to Pass!
• Forecasting the Future: Estimate At Completion (EAC)

Estimate At Completion (EAC) is the forecasted total cost of the project when all work is finally finished. It is the new, brutally honest price tag.

The PMP exam tests situational judgment, not just rote memorization. There is no single EAC formula. A project manager must choose the correct mathematical approach based on the specific assumptions surrounding the project’s current failure or success.

EAC Formula 1: The Trend Continues (Most Common)

• Formula: EAC = BAC / CPI
• The Assumption: The cost performance experienced so far will continue until the end of the project.
• When to Use It: If a team has been operating at a CPI of 0.8 for six months, it is foolish to assume they will suddenly become hyper-efficient. Use this formula when current trends are expected to remain permanent. Unless a PMP exam question explicitly states otherwise, this is the default formula.

EAC Formula 2: The Anomaly

• Formula: EAC = AC + (BAC - EV)
• The Assumption: The remaining work will be accomplished at the originally planned budgeted rate.
• When to Use It: A freak hardware failure caused a massive, one-time spike in costs (Actual Cost). However, the issue is fixed. The remaining work will proceed exactly as originally planned. Use this formula when the past variance was an isolated anomaly that will not repeat.

EAC Formula 3: The Disaster Scenario

• Formula: EAC = AC + [(BAC - EV) / (CPI * SPI)]
• The Assumption: Both poor cost performance and poor schedule performance will heavily impact the remaining work.
• When to Use It: The project is bleeding cash and is weeks behind schedule. The deadline is strict. To catch up, the project manager must authorize expensive weekend overtime. This means the bad schedule (SPI) is going to force even worse cost performance (CPI). This formula accounts for that compound disaster.
• Sharpen Your Skills: Complex problems require a united front. If a project enters a disaster scenario, leadership must act fast. Build team resilience with Mastering Collaboration Within a Team.

EAC Formula 4: The Total Reset

• Formula: EAC = AC + Bottom-up ETC
• The Assumption: The original budget is completely flawed. Past performance is utterly irrelevant.
• When to Use It: The project scope was fundamentally misunderstood. The initial estimates were disastrously wrong. The project manager must stop everything, evaluate what has been spent so far (AC), and force the team to create a brand new, highly detailed estimate for the remaining work (Bottom-up ETC).

Figuring Out the Rest: Estimate To Complete (ETC)

Estimate To Complete (ETC) answers a very specific question for the project sponsor: “How much more money do we need to finish this?”

It calculates the forecasted cost strictly for the remaining work, starting from today. Just like EAC, the ETC formula changes based on the situational assumptions.

• ETC Formula 1 (The Reset): ETC = Re-estimate of Remaining Work (Bottom-up). This is the most accurate, but also the most time-consuming method.
• ETC Formula 2 (The Anomaly): ETC = BAC - EV. This assumes the rest of the project will hit the exact original budget targets.
• ETC Formula 3 (The Trend): ETC = (BAC - EV) / CPI. This assumes the current cost efficiency (or inefficiency) will persist.

If a project manager already knows the EAC, calculating the ETC is incredibly simple: ETC = EAC - AC.

The Final Tally: Variance At Completion (VAC)

Variance At Completion (VAC) is the forecasted difference between the original, approved budget (BAC) and the newly calculated expected total cost (EAC).

• Formula: VAC = BAC - EAC

This metric removes all ambiguity for the stakeholders.

• VAC > 0: The project is projected to finish under budget. This is a surplus.
• VAC < 0: The project is projected to finish over budget. This is a deficit.
• VAC = 0: The project is miraculously landing exactly on the original target.

Avoid Costly Errors: Bad data equals bad forecasts. An unverified variance report is a severe project risk. Learn the difference between tracking and auditing in our guide: Risk Audit vs Risk Review PMP.

How the 2026 PMP Exam Actually Tests EVM

Candidates waste weeks memorizing equations, only to panic on exam day.

The modern exam rarely asks a candidate to pull out a calculator and solve for a specific dollar amount. Instead, it tests data interpretation. The exam presents a scenario: “Your project has a CPI of 0.85 and an SPI of 1.15. The sponsor wants to know the financial status. What do you report?”

The candidate must immediately recognize that the project is over budget (CPI < 1.0) but ahead of schedule (SPI > 1.0).

Furthermore, the July 9, 2026, exam update shifts the testing focus heavily toward the Business Environment. Expect questions that test how a project manager communicates a negative VAC to a hostile executive board. The math is just the starting point; the human leadership response is the actual test.

Stay Informed: Do not study outdated formats. Review the impending changes in our PMP Exam 2026 Update Guide.

The Reality of Workflow Automation

In 2026, no senior project manager manually calculates an EAC on a whiteboard.

Software platforms and automated dashboards calculate these metrics in milliseconds. However, if a project manager does not understand the underlying mathematical assumptions, they cannot audit the software. If an AI agent suggests increasing the budget based on EAC Formula 1, but the project manager knows the recent cost overrun was a one-time anomaly (requiring Formula 2), the human must override the machine.

Deep Dive: Discover how autonomous agents are taking over the manual math in How to Use AI Agents in Project Management for Workflow Automation.

Understanding the EVM Formulas PMP candidates study is what separates a passive software user from a true project leader. Master the logic behind the formulas. Understand the situational assumptions. Once the logic clicks, the math becomes effortless.

Keep advancing in your PMP journey — explore our other in-depth guides

• Agile vs Waterfall: Which Methodology is Right for Your Project?
• The 5 Scrum Events Explained: Purpose, Attendees, and Effective Execution
• Why PMP Aspirants Fail? – And How to Avoid Them
• Confused Between Agile, Hybrid, and Predictive? Here’s a Clear Comparison
• Why You Should Track Your Errors — and How to Do It Right

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