Manufacturing Excellence
OEE Calculator
📊 Availability × Performance × Quality
Calculate Overall Equipment Effectiveness — the gold standard for manufacturing productivity.
Availability
Planned Production Time
minutes
Total scheduled production time (e.g., 8 hours = 480 minutes)
Downtime
minutes
Breakdowns, setup, changeovers, and maintenance
Availability
87.5%
Performance
Ideal Cycle Time
seconds
Theoretical fastest time to produce one unit
Total Units Produced
units
Total units produced during the planned time
Performance
83.3%
Quality
Good Units
units
Units meeting quality standards (no defects)
Quality
95.0%
Defects / Rework
20 units
OEE
0%
Overall OEE
0%
—
Availability
0%
Performance
0%
Quality
0%
Lost Time
0 min
📊 Detailed Breakdown
| Category | Value | % |
|---|
How the formula works
OEE = Availability × Performance × Quality
- Availability = (Planned Time − Downtime) / Planned Time
- Performance = (Total Units × Ideal Cycle Time) / Operating Time
- Quality = Good Units / Total Units
- OEE = Availability × Performance × Quality
- OEE Ratings: >85% = World Class, 60-85% = Good, 40-60% = Fair, <40% = Poor
- Lost Time = Downtime + (Operating Time − (Total Units × Ideal Cycle Time / 60))
- Availability losses: Breakdowns, setup, changeovers
- Performance losses: Speed losses, minor stops
- Quality losses: Defects, rework, startup rejects