Study Time Calculator
Work out exactly how many hours you need to revise each day before your exam, based on your topics and the time you have left.
Plan Your Study Schedule
Enter your exam date, topics to cover, and the time you have available, and instantly see how many hours to study each day.
Revision Plan Estimator
Get a clear breakdown of your study hours before exam day.
How it Works
Understanding your study plan
Count the Days
We calculate exactly how many days remain between today and your exam date.
Total Hours Needed
Your target hours per topic is multiplied by your number of topics to get your total study requirement.
Remove Rest Days
We subtract your weekly rest days from the countdown to find your real number of study days.
Daily Study Target
Your total hours needed is spread evenly across your study days to show your daily target.
Recommended Revision Hours
A general guide to how much total revision time is often recommended per subject, depending on the level of study.
| Level of Study | Typical Hours per Subject | Notes |
|---|---|---|
| GCSE / Secondary School | 15 – 25 hours | Spread across several weeks, with shorter daily sessions of 30-60 minutes per topic. |
| A-Level / Sixth Form | 25 – 40 hours | More independent study expected, often including past papers and timed practice. |
| Undergraduate Module | 30 – 50 hours | Includes wider reading and essay planning alongside core revision content. |
| Professional Certification | 40 – 80+ hours | Often self-paced over several months, with practice exams closer to the test date. |
| Final Week Cram Review | 5 – 10 hours | A focused summary review, best used to reinforce material already studied, not to learn it for the first time. |
Study Time Calculator FAQ
Answers to the most frequently asked questions about planning revision time before an exam.
This depends on how many topics you need to cover and how many days remain before your exam. A common approach is to divide your total available study hours by the number of topics, then spread that evenly across your remaining study days, leaving time for rest and review.
Estimate the hours needed per topic, multiply by the number of topics, then compare that total against how many hours you realistically have available before the exam date. If your available time is lower than your total needed, you will need to increase daily study time or start earlier.
Yes, scheduling regular rest days helps prevent burnout and actually improves long-term retention. Most revision plans build in at least one rest day per week, with study hours spread more intensively across the remaining days.
Spaced repetition involves reviewing material at increasing intervals over time, rather than cramming it all at once. Revisiting each topic more than once, spread across your available days, tends to improve long-term memory more than a single long study session.