Project Health Calculator
Produces a single overall health score by averaging schedule, budget, and quality health percentages. Use it in weekly status reports or steering committee reviews to communicate project status at a glance.
About this calculator
A project health score aggregates three critical performance dimensions into one actionable metric. The formula is straightforward: Project Health = (scheduleHealth + budgetHealth + qualityHealth) / 3. Each input is expressed as a percentage from 0% to 100%, where 100% represents a dimension that is fully on track. Schedule health might reflect the ratio of completed milestones to planned milestones. Budget health could represent remaining budget as a percentage of the original allocation. Quality health might capture the defect resolution rate or test pass rate. The arithmetic mean of these three scores gives an overall health percentage. A result above 80% typically indicates a healthy project, 60–79% signals concerns requiring attention, and below 60% warrants escalation. Teams can also compare individual dimension scores to identify which area is dragging down overall health.
How to use
A project is 85% on track for schedule (two minor milestones delayed), 70% on budget (some unplanned infrastructure costs), and 90% on quality (high test pass rate). Step 1: Sum the three scores: 85 + 70 + 90 = 245. Step 2: Divide by 3: 245 / 3 ≈ 81.7%. The overall project health score is approximately 82% — healthy overall, but the budget dimension at 70% deserves a closer look and a mitigation plan before the next reporting period.
Frequently asked questions
How do I calculate budget health percentage for a project?
Budget health is most commonly expressed as the ratio of remaining budget to originally planned budget at this stage of the project. If you planned to spend $60,000 by week 8 and have actually spent $72,000, your budget health is (60,000 / 72,000) × 100 ≈ 83%. Alternatively, some teams use Earned Value Management metrics like the Cost Performance Index (CPI) scaled to a percentage. The key is to apply a consistent definition across all reporting periods so that trends are meaningful. A budget health score that is declining week over week is a stronger signal than any single data point.
What is a healthy project health score and when should I escalate to stakeholders?
A project health score above 80% generally indicates the project is on track across all three dimensions and requires only routine monitoring. Scores between 60% and 79% are a yellow flag — one or more dimensions need active management, and stakeholders should be briefed on the risk and the mitigation plan. Scores below 60% are a red flag requiring immediate escalation, as the project is at material risk of missing its objectives. Many PMOs publish a traffic-light dashboard using these bands to give executives an instant read on portfolio health without requiring them to dig into detailed reports.
Why should schedule, budget, and quality health be weighted equally in a project health score?
Equal weighting treats each dimension as a critical and interdependent pillar of project success — a project that ships on time and on budget but with poor quality has still failed its users. In practice, some organizations apply custom weights based on project type: a safety-critical system might weight quality at 50%, while a market-entry sprint might prioritize schedule. Equal weighting is the most defensible default because it avoids organizational biases and is easy to explain to stakeholders. If your team decides to apply custom weights, document the rationale and apply them consistently so that health scores remain comparable across projects.