Enter the total Man Hours and the standard number of working hours in a day into the calculator to determine the total Man Days. This calculator can also evaluate any of the variables given the others are known.

Man Hours To Man Days Formula

The following formula is used to calculate Man Days from Man Hours.

MD = MH / 8

Variables:

  • MD is the total Man Days
  • MH is the total Man Hours
  • 8 is the standard number of working hours in a day

To calculate Man Days, divide the total Man Hours by the standard number of working hours in a day, which is typically eight. This will give you the total number of Man Days. This conversion is useful in project management for estimating the amount of work or effort required to complete a task.

What is a Man Hours To Man Days?

Man Hours to Man Days is a conversion metric used in project management to estimate the amount of work or effort required to complete a task. It is based on the concept that a man day represents the amount of work one person can accomplish in an eight-hour workday, while a man hour represents the amount of work one person can accomplish in one hour. Therefore, to convert man hours to man days, the total number of man hours is divided by the standard number of working hours in a day, typically eight. This helps in planning and scheduling tasks effectively.

How to Calculate Man Hours To Man Days?

The following steps outline how to calculate the Man Hours To Man Days.


  1. First, determine the total Man Hours (MH).
  2. Next, divide the total Man Hours (MH) by 8 (standard number of working hours in a day).
  3. Finally, calculate the total Man Days (MD).
  4. 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 Man Hours (MH) = 160

Standard number of working hours in a day = 8