Is utilization the same as availability?

No. Availability divides run time by planned production time, which excludes breaks. Utilization here divides run hours by all available machine time, so it reads lower whenever the machine sits idle or waits.

Where does unassigned time come from?

It is what remains after run, downtime and idle are subtracted from available time. At the V1 defaults the three buckets summed to the whole window, so it always read zero; real logs rarely fill the window exactly.

Should waiting for an operator count as idle?

Yes, if the machine is ready to run and the operator is elsewhere. That minute is capacity you paid for and did not use; keep it separate from breakdown time so the fix goes to staffing, not maintenance.

Can utilization exceed 100%?

Only if the run hours came from a longer window than the available hours. Run, downtime, idle and unassigned together must fit inside available time, so the calculator blocks a sum above it.

What is a good machine utilization?

Typical Machine utilization runs 60-75% (% of available hours); 75-85% is good, and 85%+ is world-class. Utilization above ~85% with no slack typically trades away schedule flexibility and maintenance windows; world-class is high AND stable, not maxed out.

Production calculator

Machine Utilization Calculator

Split available machine time into run, downtime, idle and unassigned hours, and see the utilization against a target. You need available hours, the run and downtime records, and the idle time operators report.

What this calculator does

How much of a machine's available time runs product, and which of idle, downtime or reserve holds the rest.

Formula used

Utilization = run time ÷ available machine time × 100
Idle % = idle time ÷ available time × 100; downtime % = downtime ÷ available time × 100
Unassigned time = available machine time − run − downtime − idle
Gap to target = utilization − target utilization

Inputs explained

Available Machine Time: Machine hours on the schedule for this window, before stops.
Run Time: Hours the machine actually ran product, from the log.
Downtime: Breakdown and repair hours inside the available window.
Idle and Waiting Time: Hours ready but waiting for work, an operator or material.
Target Utilization: Utilization the cell or site expects from this machine.

How to use the result

Best suited to reviewing a machine's week, separating idle time from breakdowns, justifying a second shift or a cell.
Ratios only; the page does not show which product or shift used the time. Overtime counts as available time when you enter it that way.

Current U.S. benchmarks

As of Aug 2026, U.S. manufacturing runs at 75.7% of capacity (Federal Reserve via FRED), down 0.1 points from a year earlier. Enter your own plant's utilization; the national figure is a reference point for how loaded the industry is.
The U.S. has 21,668 machinery manufacturing establishments employing about 1,086,146 workers (Census County Business Patterns, 2023).

Common questions

Is utilization the same as availability? No. Availability divides run time by planned production time, which excludes breaks. Utilization here divides run hours by all available machine time, so it reads lower whenever the machine sits idle or waits.
Where does unassigned time come from? It is what remains after run, downtime and idle are subtracted from available time. At the V1 defaults the three buckets summed to the whole window, so it always read zero; real logs rarely fill the window exactly.
Should waiting for an operator count as idle? Yes, if the machine is ready to run and the operator is elsewhere. That minute is capacity you paid for and did not use; keep it separate from breakdown time so the fix goes to staffing, not maintenance.
Can utilization exceed 100%? Only if the run hours came from a longer window than the available hours. Run, downtime, idle and unassigned together must fit inside available time, so the calculator blocks a sum above it.
What is a good machine utilization? Typical Machine utilization runs 60-75% (% of available hours); 75-85% is good, and 85%+ is world-class. Utilization above ~85% with no slack typically trades away schedule flexibility and maintenance windows; world-class is high AND stable, not maxed out.

Related guides

Managing Machine Utilization Without Building Inventory

Last reviewed 2026-10-01.