Maintenance & Reliability calculator
PM Compliance Rate Calculator
A PM program is only preventive if the tasks are actually completed on time. PM compliance rate helps planners and reliability leaders see whether the schedule is holding and how far it is from target.
What this calculator does
- Measure the percentage of scheduled PM work orders completed on time and compare it with the site target.
- Use it when supervisors need to know whether the planned PM program is actually being executed as scheduled.
- Shows how consistently the preventive maintenance program is executed on schedule.
Formula used
- PM compliance rate = completed PMs on time ÷ scheduled PMs × 100
- Gap to target = PM compliance target - PM compliance rate
Inputs explained
- Completed PMs on time: Count PM work orders completed within their required due window.
- Scheduled PMs: Use the total PM work orders due in the same period.
- PM compliance target: Use the target compliance percentage your site expects.
How to use the result
- Use it in weekly and monthly PM review, shutdown planning, and reliability governance meetings.
- High compliance does not guarantee good PM content, so pair this with PM effectiveness and failure outcomes.
Common questions
- Should overdue PMs completed late count as compliant? No, unless your site specifically defines a grace window and uses it consistently.
- What is a strong PM compliance target? Many plants aim for 90 to 95 percent or better, but the right target depends on asset criticality and work mix.
- Why is PM compliance important for reliability? Missed PM work often becomes future corrective demand, so low compliance is an early warning sign for breakdown risk.
- What target PM compliance should I set? Best-practice plants sustain 90-95% compliance. Below 80% indicates systemic scheduling problems, parts shortages, or insufficient staffing. Start with an achievable step-up target and improve 5% per quarter.
Last reviewed 2026-05-12.