Earned Value Analysis Calculator for Construction Projects
Calculate earned value metrics to track construction project performance against budget and schedule
What You Can Do
You can calculate core earned value management metrics that integrate scope, schedule, and budget performance into a single framework. The skill computes planned value (PV), earned value (EV), actual costs (AC), and derives schedule variance (SV), cost variance (CV), schedule performance index (SPI), cost performance index (CPI), and estimate at completion (EAC). This enables you to identify performance problems early, quantify schedule and budget deviations, and forecast final project costs with confidence.
Features
Example Output
Example 1: Monthly EVM Report
Project: Downtown Office Tower (Month 6)
Planned Value (PV): $2,400,000
Earned Value (EV): $2,100,000
Actual Cost (AC): $2,250,000
Schedule Variance: -$300,000 (behind schedule)
Cost Variance: -$150,000 (over budget)
SPI: 0.875 (87.5% schedule efficiency — 12.5% behind)
CPI: 0.933 (93.3% cost efficiency — 6.7% over budget)
EAC: $6,480,000 (vs. $6,000,000 baseline — $480K overrun projected)
TCPI: 1.038 (must improve cost efficiency 3.8% to meet baseline)
Example 2: Variance Interpretation & Action SPI declining from 0.92 to 0.88 over three months signals accelerating schedule slip. CPI stable at 0.94 indicates labor productivity issue rather than scope creep. Recommendation: Review crew staffing on critical path activities; reallocate resources from float activities.
What's Included
- SKILL.md instruction file: complete EVM methodology and metric definitions
- EVM Calculation Template: spreadsheet-ready formulas for PV, EV, AC, SPI, CPI, EAC, and TCPI
- Variance Interpretation Checklist: decision tree for identifying root causes (schedule slip, cost overrun, scope changes)
- Performance Trending Worksheet: monthly SPI/CPI tracking with alert thresholds
- Change Order Impact Analysis Framework: quantify baseline adjustments and cost/schedule effects
Who It's For
- Construction Project Managers — track multi-million dollar projects against earned value baselines
- Project Controls Engineers — calculate and interpret EVM metrics for owner reporting
- Contract Administrators — use objective performance data to resolve subcontractor disputes
- Portfolio Managers — assess individual project health for resource and capital allocation decisions
- Government/Institutional Clients — satisfy contractual earned value reporting requirements
Best For
- Monthly and quarterly project performance reviews against budget and schedule baselines
- Early warning detection of cost overruns and schedule delays through SPI/CPI trending
- Forecast-at-completion (EAC) calculations for budget reforecasting and contingency planning
- Objective analysis of change orders and their impact on project budget and schedule
- Multi-phase and portfolio-level project health dashboards for executive stakeholders
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