CPI/SPI Performance Calculator
Advanced performance index analysis with comprehensive EVM metrics and professional project monitoring
Cost Performance Index for budget efficiency
Schedule Performance Index for timeline monitoring
Comprehensive project performance analysis
Performance-based risk evaluation and alerts
Earned Value Management Inputs
Budgeted cost of work scheduled
Budgeted cost of work performed
Actual cost of work performed
Understanding Performance Indices
Key Performance Metrics
Cost Performance Index (CPI)
Measures cost efficiency by comparing earned value to actual cost. CPI > 1 indicates under budget, CPI = 1 indicates on budget, and CPI < 1 indicates over budget. Critical for cost management.
Schedule Performance Index (SPI)
Measures schedule efficiency by comparing earned value to planned value. SPI > 1 indicates ahead of schedule, SPI = 1 indicates on schedule, and SPI < 1 indicates behind schedule. Essential for timeline management.
Performance Levels
Performance indices are categorized into levels: Excellent (≥1.1), Good (≥1.0), Fair (≥0.9), Poor (≥0.8), and Critical (<0.8). This helps in risk assessment and decision making.
Application & Analysis
Performance Monitoring
Regular CPI/SPI monitoring enables early detection of performance issues, allowing for timely corrective actions and better project control. Critical for successful project delivery.
Risk Management
Performance indices help identify project risks, forecast potential issues, and implement preventive measures. Essential for proactive project risk management.
Decision Making
CPI/SPI data provides objective metrics for resource allocation, scope adjustments, and strategic project decisions. Supports data-driven project management.
CPI/SPI Best Practices
Regular Monitoring
Calculate CPI/SPI weekly or bi-weekly to track performance trends and identify issues early.
Data Accuracy
Ensure PV, EV, and AC data is accurate and timely for reliable performance analysis.
Trend Analysis
Track CPI/SPI trends over time to identify performance patterns and forecast future outcomes.
Benchmarking
Compare performance indices against industry standards and project baselines.
Corrective Actions
Take immediate action when CPI/SPI falls below threshold values to prevent project failure.
Integrated Analysis
Use CPI/SPI alongside other EVM metrics for comprehensive project performance assessment.