OEE Calculator.
Compute Overall Equipment Effectiveness for any machine or production line. OEE = Availability × Performance × Quality. World-class benchmark is 85%; typical Indian plants run 40–60%.
Availability — Time
Total scheduled time per shift, minus planned breaks
Breakdowns, changeovers, material shortage, waiting
Performance — Speed
Theoretical fastest cycle time per part
Total units run during operating time (good + reject)
Quality — Defects
Parts that did not meet quality first time
OVERALL EQUIPMENT EFFECTIVENESS
—%
—
Availability
—
Run time / planned time
Performance
—
Actual / ideal output
Quality
—
Good / total parts
Loss summary
Operating time: — min
Run time lost to breakdowns: — min
Speed loss vs ideal: — min
Defective parts: — units
Theoretical max output: — parts
Run time lost to breakdowns: — min
Speed loss vs ideal: — min
Defective parts: — units
Theoretical max output: — parts
OEE benchmarks
| OEE Range | Class | Typical Industry | Action |
|---|---|---|---|
| 85% + | World-class | Toyota Production System, top automotive Tier-1s | Maintain & document best practices |
| 70–85% | Good | Established Tier-1 / Tier-2 manufacturers | Targeted Kaizen on top loss |
| 60–70% | Acceptable | Most Indian Tier-1 / SME automotive | SMED, autonomous maintenance |
| 40–60% | Typical | Average Indian SME job-shops | TPM rollout, root-cause for top 3 losses |
| Below 40% | Low | Unmonitored shops, ad-hoc operations | Start with availability tracking — measure before fixing |