What is Earned Value Management (EVM)?
Earned Value Management (EVM) — sometimes called Earned Value Analysis (EVA) — is a project management methodology that integrates scope, schedule, and cost to measure project performance objectively. It answers three critical questions at any point in a project:
- Are we on budget? — measured by Cost Variance (CV) and Cost Performance Index (CPI)
- Are we on schedule? — measured by Schedule Variance (SV) and Schedule Performance Index (SPI)
- What will the final cost be? — forecast via Estimate at Completion (EAC)
EVM is used across industries — from construction and software development to aerospace and infrastructure — because it provides reliable, early-warning signals when projects are drifting off course.
How to Use the EVM Calculator
Enter four project data points into the form and select your currency:
- Budget at Completion (BAC) — the total planned budget for the entire project.
- Planned Progress (%) — what percentage of the project was scheduled to be complete by today.
- Actual Progress (%) — what percentage of the project is actually complete today.
- Actual Cost (AC) — the total amount of money spent on the project so far.
The calculator instantly computes all EVM metrics and tells you whether your project is on budget, over budget, ahead of schedule, or behind schedule — plus a forecast of the final cost.
EVM Formulas Explained
Step 1 — Core Values
| Metric | Formula | Meaning |
|---|---|---|
| Planned Value (PV) | BAC × Planned% | Budgeted value of work scheduled so far |
| Earned Value (EV) | BAC × Actual% | Budgeted value of work actually completed |
| Actual Cost (AC) | Direct input | Money actually spent so far |
Step 2 — Variance Analysis
| Metric | Formula | Interpretation |
|---|---|---|
| Cost Variance (CV) | EV − AC | Positive = under budget; Negative = over budget |
| Schedule Variance (SV) | EV − PV | Positive = ahead of schedule; Negative = behind |
Step 3 — Performance Indices
| Index | Formula | Rule |
|---|---|---|
| CPI | EV ÷ AC | >1 = efficient; <1 = overspending; =1 = on target |
| SPI | EV ÷ PV | >1 = ahead; <1 = behind; =1 = on schedule |
Step 4 — Forecasts
| Metric | Formula | Meaning |
|---|---|---|
| EAC (Estimate at Completion) | BAC ÷ CPI | Forecast total cost at current efficiency |
| ETC (Estimate to Complete) | EAC − AC | Remaining cost needed to finish |
| VAC (Variance at Completion) | BAC − EAC | Expected under/over budget at finish |
| TCPI (To-Complete PI) | (BAC − EV) ÷ (BAC − AC) | Efficiency needed on remaining work to stay on budget |
EVM Example
Suppose you are managing a $100,000 project. By mid-project the plan said you should have completed 50% of the work, but you have only completed 40%. You have spent $45,000 so far.
- BAC = $100,000
- PV = 50% × $100,000 = $50,000
- EV = 40% × $100,000 = $40,000
- AC = $45,000
- CV = $40,000 − $45,000 = −$5,000 (over budget)
- SV = $40,000 − $50,000 = −$10,000 (behind schedule)
- CPI = $40,000 ÷ $45,000 = 0.889 (spending $1.12 for every $1 of work done)
- SPI = $40,000 ÷ $50,000 = 0.800 (completing 80% of planned work)
- EAC = $100,000 ÷ 0.889 = $112,485 (forecast final cost)
- ETC = $112,485 − $45,000 = $67,485 (remaining spend)
- VAC = $100,000 − $112,485 = −$12,485 (expected overrun)
- TCPI = ($100,000 − $40,000) ÷ ($100,000 − $45,000) = 1.091 (need 9.1% more efficiency on remaining work)
How EVM is Used in Project Management
EVM is a cornerstone of PMI/PMBOK, PRINCE2, and U.S. government acquisition standards (ANSI/EIA-748). Key applications include:
- Early warning system — studies show EVM at 20% completion predicts final cost within ±10%.
- Performance tracking — CPI and SPI trends across reporting periods reveal whether performance is improving or deteriorating.
- Forecasting — EAC gives stakeholders a realistic cost-to-complete estimate.
- Corrective action — TCPI shows exactly how much more efficiently the team must work to meet the original budget.
Frequently Asked Questions
- Can EVM be used on small projects?
- Yes. EVM scales to any project — from a one-person task to a multi-billion-dollar program. Even a simple three-field spreadsheet can apply EVM principles.
- What does a CPI of 1.15 mean?
- For every $1 spent, you are generating $1.15 of planned work. The project is 15% under budget relative to progress.
- What if my SPI is less than 1?
- The project is behind schedule. An SPI of 0.80 means you are completing 80 cents of planned work for every dollar's worth of schedule consumed.
- What currencies does this calculator support?
- 20 world currencies including USD ($), RUB (₽), EUR (€), GBP (£), JPY (¥), CNY (¥), CAD (C$), AUD (A$), CHF (Fr), INR (₹), and more.
- What is TCPI and why does it matter?
- TCPI (To-Complete Performance Index) shows the cost efficiency you must achieve on all remaining work to finish within budget. TCPI > 1.10 is generally considered unrealistic and signals that the original budget needs to be revised.