Time & dates
Student time management calculator
See whether your course load, job and sleep fit into a week, using the standard two hours of study per credit.
One credit hour is about one hour in class per week. The 2-hours-of-study rule is a guideline; harder courses can need more.
How the weekly budget is worked out
In the US credit system, one credit hour usually means about one hour of class each week plus two hours of work outside class, the definition the US Department of Education uses for federal purposes. The calculator therefore counts class time as credits × 1 and study time as credits × 2. It adds your paid work hours, sleep × 7 and your daily routine × 7, and subtracts the total from the 168 hours in a week.
Worked example with the defaults: 15 credits give 15 hours of class and 30 of study, 45 hours in all, which is already more than a full-time job. Add a 10-hour campus job, 56 hours of sleep (8 a night) and 21 hours of commuting, meals and chores (3 a day), and the week holds 132 committed hours. That leaves 36 hours, about 5 hours 9 minutes a day, for rest, exercise and friends.
| Credits | Class + study per week | Hours left, no job | Hours left, 15-h job |
|---|---|---|---|
| 6 | 18 | 73 | 58 |
| 9 | 27 | 64 | 49 |
| 12 | 36 | 55 | 40 |
| 15 | 45 | 46 | 31 |
| 18 | 54 | 37 | 22 |
The last two columns assume 8 hours of sleep a night and 3 hours a day of commuting, meals and chores.
Making a semester fit
Fewer than two free hours a day is a warning sign, and a negative number means the plan only works on paper. The first thing people cut is usually sleep, which tends to backfire around exams. Better levers are the job (could some hours move to holidays?), the course load (12 credits is often the full-time minimum for financial aid, so check before dropping below it) and the daily routine (a shorter commute or batch cooking).
Treat the study figure as a starting point. Lab sciences, maths and writing-heavy courses often need closer to three hours per credit, while a course you already know well may need less. In the first two weeks, log your real study hours per course and replace the estimate. Also remember that the load is uneven: midterm and finals weeks can double the study time, so a week that just fits in October may not fit in December.
Frequently asked questions
How many hours should I study per credit hour?
The usual guideline is 2 hours outside class for each credit hour per week, so a 3-credit course means about 6 hours of study. Demanding courses can take 3 hours per credit.
Is 15 credits plus a part-time job too much?
15 credits mean about 45 hours a week of class and study. With a 15-hour job, 8 hours of sleep and 3 hours of daily routine, about 31 hours a week remain, roughly 4.4 a day: tight but possible.
How many hours does a full-time student spend on school?
At 12 to 15 credits, the standard rule gives 36 to 45 hours a week of class and study combined, similar to or more than a full-time job.