Study Hours Calculator
This calculator turns a list of pending topics into a daily study plan. It is useful when an exam is close and you need to know whether your available time is enough, or how many daily hours you need to cover the whole syllabus.
With 12 topics, 45 minutes per topic, 7 available days, and 20% extra review time, you need 10.8 hours total, or 1.54 hours per day. You immediately know if the plan fits your routine.
Formula
Total hours = topics × minutes per topic × (1 + extra review) ÷ 60 Hours per day = Total hours ÷ available days
Step-by-step example
- Pending topics = 12
- Time per topic = 45 minutes
- Extra review = 20% → factor 1.20
- Total hours = 12 × 45 × 1.20 ÷ 60 = 10.8 hours
- With 7 available days: 10.8 ÷ 7 = 1.54 hours/day
Scenario table (12 topics, 45 min/topic, 20% extra)
| Available days | Hours per day | 2-hour sessions |
|---|---|---|
| 3 | 4.5 h | ~2.3 |
| 5 | 2.16 h | ~1.1 |
| 7 | 1.54 h | ~0.8 |
| 10 | 1.08 h | ~0.5 |
How to use the result
If the plan is tight, you have four levers: increase daily hours, reduce topics (prioritize the ones worth the most on the exam), lower time per topic, or start earlier. The extra review margin (10-30%) absorbs difficult exercises, slow reading, and last-minute reviews: do not eliminate it entirely.
The plan assumes you study the indicated time effectively. Studying more than 6-8 sustained hours per day usually has diminishing returns; combine blocks with breaks (Pomodoro technique) and enough sleep.
Frequently asked questions
Divide the total hours needed (topics × minutes per topic × extra margin) by the available days. Example: 10.8 hours ÷ 7 days = 1.54 hours/day.
Between 10% and 30% is usually reasonable for practice, slow reading, or harder exercises. Without a buffer, any setback breaks the plan.
Divide the daily hours by the length of your focus block. With 1.54 hours/day and 25-minute blocks, you need about 4 Pomodoros.
Prioritize: study the highest-weight topics first, reduce the extra margin, and consider longer sessions on weekends. You can also redistribute topics across days.
Related calculators
- Pomodoro timer: organize hours into focus blocks
- Weighted average: calculate your grade average by credits
- Final grade needed: what you need on the exam
- Date calculator: count the days until the exam