Enter the total number of labor hours and the labor efficiency (%) into the Non-Productive Hours Calculator. The calculator will evaluate the Non-Productive Hours.

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## Non-Productive Hours Formula

The following two example problems outline the steps and information needed to calculate the Non-Productive Hours.

NPH = LH * (1-LE/100)

Variables:

- NPH is the Non-Productive Hours (hours)
- LH is the total number of labor hours
- LE is the labor efficiency (%)

To calculate the non-productive hours, multiply the total number of hours by 1 minus the labor efficiency.

## How to Calculate Non-Productive Hours?

The following steps outline how to calculate the Non-Productive Hours.

- First, determine the total number of labor hours.
- Next, determine the labor efficiency (%).
- Next, gather the formula from above = NPH = LH * (1-LE/100).
- Finally, calculate the Non-Productive Hours.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

total number of labor hours = 100

labor efficiency (%) = 75

NPH = LH * (1-LE/100)** **= ?