Production worked example

Machine Utilization with available machine time of 8 hr: a worked example in production

Here is what the math looks like when conditions slip. We hold every other input steady and drop available machine time to 8 hr, then walk the calculation through step by step. Measure run time, idle time, and downtime against available machine time.

The inputs for this scenario

Available machine time: 8 hr (the input this scenario stresses; the baseline uses 16)
Run time: 11.5 hr (held at the documented default)
Downtime: 1.2 hr (held at the documented default)
Idle / waiting time: 3.3 hr (held at the documented default)

Working through the calculation

The calculation starts from the formula this tool documents: Utilization = run time ÷ available time.
Utilization works out to 144 % at these inputs, and this is the headline figure for the scenario.
Idle time works out to 41.25 % at these inputs.
Downtime works out to 15 % at these inputs.
Unassigned time works out to 0 hr at these inputs.

How this compares with the baseline

Against the tool's baseline example, where available machine time sits at 16 hr and the headline result is 71.88 %, this scenario comes in 100% above the baseline at 144 %.
The practical read: the gap between this scenario and the baseline is entirely attributable to available machine time, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. Utilization here counts any run time as productive, so it does not penalize slow cycles or scrap; for a quality- and speed-adjusted view you need OEE rather than utilization alone.

Results at a glance

Utilization: 144 % (headline result)
Idle time: 41.25 %
Downtime: 15 %
Unassigned time: 0 hr

Run it with your numbers

To rerun this with your own numbers, open the live Machine Utilization calculator, set available machine time to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.