About this calculator
The calculator tells you the hours a day you need and whether your available time is enough.
How to use it
- Enter chapters left and hours per chapter.
- Enter days left and revision days.
- Enter the hours you can study a day.
The formula
Hours a day = chapters × hours per chapter ÷ (days left − revision days)
- revision days
- days kept free at the end for revision
Worked example
24 chapters at 3 hours each, 30 days left, 7 for revision
- 72 hours over 23 days = 3.1 hours a day.
- You have 4 hours a day, so 92 hours: enough.
What the result means
Breaks, sleep and regular practice tests help more than very long sessions.
Assumptions
- Chapters take similar time.
Limitations
- Harder chapters may need more time.
Frequently asked questions
How many hours should I study a day?
It depends on what is left; this calculator gives the hours your syllabus needs.
How many days for revision?
A week or more for major exams is common.
What if I do not have enough time?
Prioritise high-weight chapters and past papers.
Last reviewed on 3 October 2026. Found a mistake? Tell us.