Turn raw shift logs into clear utilization. Compare scenarios, set targets, and export results fast. Make better capacity decisions with consistent performance signals daily.
| Scenario | Planned Production Time (min) | Operating Time (min) | EUR (%) | Comment |
|---|---|---|---|---|
| Baseline week | 4200 | 3600 | 85.71 | Normal changeovers and minor stoppages. |
| Maintenance-heavy | 3900 | 3000 | 76.92 | Higher unplanned downtime after service. |
| Improved setup | 4200 | 3780 | 90.00 | Reduced changeover via standard work. |
Equipment Utilization Rate (EUR) shows how much of your planned production window becomes real operating time. When EUR drops, the plant usually pays twice: capacity shrinks and unit costs rise. Tracking EUR weekly helps engineering teams prioritize the biggest time drains, validate improvement work, and communicate performance in a single percentage that executives understand.
The calculator separates Scheduled Time from Planned Production Time (PPT). Scheduled Time is the total calendar time you intended to staff the asset. PPT removes planned losses such as breaks and scheduled maintenance. This split prevents false alarms: a lower EUR caused by planned maintenance is different from a lower EUR caused by breakdowns.
Within PPT, the detailed mode groups losses into unplanned downtime, changeover/setup, and idle or starved time. Unplanned downtime is often maintenance related, while changeover reflects process design and standard work. Idle time can signal upstream constraints, material shortages, or scheduling gaps. Clean classification improves actionability.
Because inputs are modular, you can run scenarios quickly. For example, reduce changeover by 10 minutes per shift to estimate capacity gained, or model a preventive maintenance plan that lowers unplanned downtime. Compare EUR outcomes across weeks, lines, or product mixes, then attach exports to capacity reviews and investment requests.
Many operations consider EUR above 85% strong for stable lines, 75–85% acceptable for mixed production, and below 75% a signal to investigate. Pair EUR with context notes, safety constraints, and quality metrics to avoid pushing for utilization at the expense of reliability. Use the results table to track progress, not to blame.
A useful check is to convert the percentage back into minutes. Multiply EUR by PPT to verify the operating time makes sense, then compare the calculated downtime with your event logs. If the gap is large, review how breaks, meetings, and micro-stops are recorded. Consistent definitions matter more than perfect precision; the same rule set lets you detect trends and evaluate whether countermeasures are sustained. For reporting, capture shift, asset, product, crew, and reason codes in notes always.
Use the same period as your production review: shift, day, or week. Weekly reporting smooths noise, while shift-level reporting exposes setup and staffing issues. Keep the window consistent for comparisons.
In detailed mode, planned maintenance is removed from planned production time, so EUR focuses on losses inside the planned window. Track planned maintenance separately to avoid confusing strategy with execution.
EUR measures time utilization within planned production time. OEE also multiplies availability by performance and quality. If you only need time-based capacity insight, EUR is simpler and faster to maintain.
Standardize setup steps, stage tools and materials, use quick-release fixtures, and validate settings with checklists. Measure changeover minutes per event, then focus on the largest recurring contributors first.
Idle or starved time indicates external constraints such as upstream bottlenecks, material shortages, scheduling gaps, or operator availability. It can hide in plain sight because no mechanical fault is recorded.
Yes. If you already have planned production time and run time from a monitoring system, direct entry is quicker. Use the detailed mode when you need to understand which loss categories drive the gap.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.