How do you calculate PM compliance rate?

Divide preventive maintenance work orders completed on time by the number scheduled, then multiply by 100. With 462 on-time PMs out of 500 scheduled, that's 462 / 500 x 100 = 92.4%.

What is a good PM compliance rate?

World-class plants run 90% or higher, and many corporate programs set 95% as the formal target. At 92.4% you're solidly proactive but still 2.6 points under a 95% goal.

Does a PM count as compliant if it's done late?

Only if it's closed within the agreed grace window, typically 10% of the PM interval. A monthly PM done a few days late usually still counts; one done two weeks late does not.

Why is my PM compliance rate low?

The usual culprits are over-scheduling (more PMs generated than labor hours available), wrenches pulled onto emergency break-fix work, and parts unavailability. Compare scheduled PMs to available planned hours first.

PM compliance vs. schedule compliance, what's the difference?

PM compliance covers only preventive work orders; schedule compliance covers all planned work including corrective and project jobs. PM compliance is the stricter, reliability-focused subset.

How do I close a 2.6-point gap to target?

Roughly 13 more on-time PMs out of 500 gets you from 92.4% to 95%. Focus on the few high-failure-consequence assets first rather than spreading effort across every late PM.

Maintenance & Reliability calculator

PM Compliance Rate Calculator

PM compliance rate is the percentage of scheduled preventive maintenance work orders a plant actually completes within their grace window, and it's the single most-watched leading indicator on most reliability dashboards. Maintenance planners, reliability engineers, and plant managers track it because skipped or late PMs are the root cause behind the majority of unplanned failures. A high, stable compliance rate is what separates a planned, proactive maintenance culture from a reactive break-fix one. Auditors and corporate reliability programs frequently set a hard floor, often 90% or 95%, that sites must hold.

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.
It computes the percentage of scheduled PM work orders completed on time and the point gap to your compliance target.

Formula used

PM compliance rate = completed PMs on time ÷ scheduled PMs × 100
Gap to target = PM compliance target - PM compliance rate

Inputs explained

Preventive maintenance work orders closed on schedule:
Preventive maintenance work orders scheduled in the period:
PM compliance target (schedule attainment goal):

How to use the result

Use it at every weekly or monthly maintenance review to judge whether the PM schedule is actually being executed, not just generated.
It measures completion, not quality, so a PM that's checked off but performed poorly still counts as compliant and can mask deferred problems.

Current U.S. benchmarks

U.S. manufacturing runs at 75.6% of capacity (Federal Reserve, Jun 2026). New factory orders are up 2.3% year over year (Census).

Common questions

How do you calculate PM compliance rate? Divide preventive maintenance work orders completed on time by the number scheduled, then multiply by 100. With 462 on-time PMs out of 500 scheduled, that's 462 / 500 x 100 = 92.4%.
What is a good PM compliance rate? World-class plants run 90% or higher, and many corporate programs set 95% as the formal target. At 92.4% you're solidly proactive but still 2.6 points under a 95% goal.
Does a PM count as compliant if it's done late? Only if it's closed within the agreed grace window, typically 10% of the PM interval. A monthly PM done a few days late usually still counts; one done two weeks late does not.
Why is my PM compliance rate low? The usual culprits are over-scheduling (more PMs generated than labor hours available), wrenches pulled onto emergency break-fix work, and parts unavailability. Compare scheduled PMs to available planned hours first.
PM compliance vs. schedule compliance, what's the difference? PM compliance covers only preventive work orders; schedule compliance covers all planned work including corrective and project jobs. PM compliance is the stricter, reliability-focused subset.

Last reviewed 2026-05-12.