Enter the number of working days in a week and the duration of the notice period into the calculator to determine the notice period.

Notice Period Formula

The following formula is used to calculate the notice period.

NP = (WD * D) / W

Variables:

  • NP is the notice period (days)
  • WD is the number of working days in a week
  • D is the duration of the notice period (weeks)
  • W is the total number of weeks in a month

To calculate the notice period, multiply the number of working days in a week by the duration of the notice period in weeks. Then divide the result by the total number of weeks in a month. The result is the notice period in days.

What is a Notice Period?

A notice period is a length of time that an employee must give their employer before leaving their job, or that an employer must give an employee before terminating their employment. This period, usually stipulated in the employment contract, allows both parties to prepare for the transition. It can vary in length but is typically between one and three months. During this time, the employee is expected to continue their duties and the employer is required to pay the employee as usual.

How to Calculate Notice Period?

The following steps outline how to calculate the Notice Period.


  1. First, determine the number of working days in a week (WD).
  2. Next, determine the duration of the notice period in weeks (D).
  3. Next, gather the formula from above = NP = (WD * D) / W.
  4. Finally, calculate the Notice Period.
  5. 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.

number of working days in a week (WD) = 5

duration of the notice period in weeks (D) = 4

total number of weeks in a month (W) = 4