Utilization rate calculator
Utilization (operating rate) is the share of planned time a machine or line actually ran. Enter a week or a month of hours to get the rate, the OEE availability factor and, optionally, how much of the calendar time was even scheduled.
Result
- Utilization rate
- 87.5%
- Availability (operating ÷ net planned)
- 92.1%
- Operating time
- 140 h
- Time lost
- 20 h
- Unplanned downtime share
- 7.5%
How to use this tool
- Enter the hours the machine was scheduled to run in the period.
- Enter planned stops and unplanned downtime separately; they are treated differently in availability.
- Add the calendar hours of the period to see how much of the total time was scheduled at all.
Good to know
- Operating time counts time the machine ran at any speed; slow running and defects are measured by OEE performance and quality, not here.
Frequently asked questions
How is the utilization rate calculated?
Utilization = operating time ÷ planned time, where operating time is planned time minus planned stops minus unplanned downtime. With 160 planned hours, 8 hours of planned stops and 12 hours of breakdowns, operating time is 140 hours and utilization is 140 ÷ 160 = 87.5%.
What is the difference between utilization and availability?
Availability, as used in OEE, divides operating time by planned time after planned stops are removed, so scheduled maintenance does not count against it. Utilization divides by the full planned time, so it falls when you schedule more stops. Report both: availability for equipment reliability, utilization for how much of the schedule was productive.
What does the loading rate tell me?
Loading rate is planned time divided by calendar time, so it shows how much of the month the machine was even scheduled. A line running one shift five days a week has a loading rate near 24%, which means adding a shift can raise output far more than squeezing another point of utilization.
Results are estimates for general information. Double-check anything important with an official source.