Schedule Performance Index (SPI) Calculator
SPI shows how efficiently you’re using time against the plan. SPI below 1.0 means the project is behind schedule.
Track schedules more effectively with the right tools: See top project management tools for schedule tracking .
SPI Calculator
Formula
SPI = EV ÷ PV • SPI > 1.0 → ahead of schedule • SPI < 1.0 → behind schedule
Tools that help you protect schedule performance
Teams that consistently track schedule performance usually rely on software with strong planning, dependency management, and real-time reporting. Explore our best project management tools for 2026 to compare options side-by-side.
Compare the Best Software for Your Team
Compare Top Software →Project Management Templates Toolkit
21 proven templates to eliminate guesswork and save hours.
$79 — Download Toolkit →