Understanding OEE
How we calculate. OEE = Availability × Performance × Quality (as decimal factors). The form uses the same arithmetic as the worked examples on this page. See our methodology and accuracy policy.
Real-world scenario: A typical OEE case uses availability (%) 90 and performance (%) 95. Enter the same figures below to reproduce the worked path.
What is OEE?
A TPM/lean headline KPI. World-class OEE is often cited near 85%, but targets must match your industry and loss taxonomy.
- Same period for A, P, and Q
- Inputs as percents (0–100)
- Open component tools to build each factor
The Formula
Worked Example
Common Use Cases
- Line reviews: equipment effectiveness
- CI boards: loss waterfall start
- Shift compare: OEE by crew
Pro Tips
- Don’t average OEE across unlike assets
- Freeze planned-time rules
- Pair with downtime %
Limitations: OEE results are educational manufacturing and lean/TPM planning aids—not process-safety, quality-system, or financial advice. Confirm definitions with your MES/SCADA and quality policies.
FAQ
Can I enter decimals instead of percents?
This form expects percents (e.g. 90 for 90%). Convert decimals by multiplying by 100 first.
What if a component is 0?
OEE becomes 0%—check whether planned time or ideal rate was missing.
Authoritative References
For OEE and manufacturing KPI definitions, consult: