Inverse Intuition Home > Arete > Time available and Grades

Time Needed for a Desired Grade

Calculate available hours

  • See this worksheet to determine how much time you actually need.

How much time do you really have?

  • Add up the total hours per day that you:
    • Sleep (8 hours?)
    • Eat (1 hour total for all meals?)
    • Clean/Laundry (1/2 hour ?)
    • Hygiene/shower (1 hour?)
    • Shopping (1/2 hour?)
    • Drive time
  • That's 12 hours per day.
  • 12 hours per day x 7 days a week = 84 hours.
  • Add to that number how much you work.
    • Let's say 30 hours.
    • Total now is 114 hours you need in a week to do everything except courses and coursework.
  • There are 168 hours in a week minus the 114 gives 54 hours per week.

How much time is needed per credit hour?

Standard rule for a 3 credit class.

  • 3 hours per credit hour to obtain an A
    • That's 12 hours/week (3 in class and 9 studying/homework)
  • For a B, 3 hours per credit hour
    • That's 9 hours/week (3 in class, 6 outside of class)
  • For a C, 2 hours per credit hour
    • That's 6 hours/week (3 in class, 3 outside of class)

How much time you need to get all As with 15 credit hours

  • 12 hours x 5 classes= 60 hours per week.

We can work the math in reverse

  • If you only have 25 hours per week to put toward being in classes and to study and you have 4 courses, the best you should hope is all C grades.
    • 4 courses x 3 credits = 12 credits
    • 12 credits x 2 hours per credit hour (to get a C) = 24 hours.