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OEE Loss-to-Dollars Calculator
What is lost line time worth? Turn availability, performance, and quality losses into hours, units, and dollars, and see what a higher OEE is worth to your plant.
Enter one week of production
Example: a line has 120 planned hours a week at an ideal rate of 1,000 units per hour. It loses 24 hours to downtime and makes 70,400 units, of which 66,000 are good, so OEE is 55%. If the line is sold out at $3 margin per unit, the 54,000 units lost each week are worth $8.1 million a year, and reaching 64% OEE is worth about $1.6 million.
Your result
OEE—
Availability × performance × quality—
| Loss | Hours | Units | Per year |
|---|---|---|---|
| Availability | — | — | — |
| Performance | — | — | — |
| Quality | — | — | — |
What improvement is worth
Each additional OEE point, per year—
Reaching target OEE, per year—
Extra good units per week—
How this works
- OEE = availability × performance × quality, which equals good units ÷ (planned hours × ideal rate).
- Each loss is shown as hours at the ideal rate: downtime for availability, slow running for performance, and rejects for quality. Together they equal planned time minus the time needed to make the good units.
- Sold out: recovered time becomes extra good units, valued at contribution margin. Demand-limited: output stays the same, so recovered time is valued as hours you no longer need to run, at avoidable cost per hour.
- Demand-limited savings are real only if the freed hours are actually removed, such as overtime or a shift. Scrap material cost, labor for rework, and capital are excluded.