Translate expected overtime fatigue into lost productive hours and labor value. Enter planned overtime, the estimated productivity reduction during those hours, and loaded labor cost to compare nominal coverage with effective output.
Lost productive hours = employees × overtime hours × loss rate; loss value = lost hours × loaded hourly cost
The estimate values the portion of overtime hours assumed not to produce normal output. It helps compare staffing alternatives without treating all scheduled hours as equally productive.
The productivity-reduction percentage is an assumption. Use internal output, error, or cycle-time evidence where available rather than a generic benchmark.
For 45 employees working 8 overtime hours at an 18% reduction, estimated lost time is 64.8 hours. At $42 per hour, the loss value is $2,721.60.
No. This calculator applies the selected reduction only to the overtime hours entered.
It is hourly pay plus any employer costs you choose to include, such as payroll taxes and benefits.
The calculator values time in money. You can separately multiply effective hours by your normal units-per-hour rate.
Only if your entered loaded hourly cost includes them. Use the cost that matches the overtime period being analyzed.
Productivity effects vary by task, schedule, and workforce, so the tool avoids imposing an unsupported universal rate.
| Output | How to use it |
|---|---|
| Estimated productivity-loss value | Primary planning estimate |
| Lost productive hours | Supporting decision metric |
| Effective productive hours | Supporting decision metric |
| Effective output rate | Supporting decision metric |