Manufacturing Excellence
OEE Calculator 📊 Availability × Performance × Quality
Calculate Overall Equipment Effectiveness — the gold standard for manufacturing productivity.
Planned Production Time
minutes
Total scheduled production time (e.g., 8 hours = 480 minutes)
Downtime
minutes
Breakdowns, setup, changeovers, and maintenance
Availability 87.5%
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%
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