How to make an exam study plan that works
Last updated: 20 October 2026
A study plan for an exam does not start today. It starts on the exam day and counts back: how many hours this subject needs, when you begin, and when you stop learning new material and start reviewing. This guide gives you the method, a worked example you can copy, and the mistakes that sink most plans.
Why you count back from the exam day
Plan forwards (“on Monday I'll start statistics”) and you find out in the last week that the hours will not do. Count back and you see it on day one: the exam is fixed, the hours it needs are fixed, so the day you start follows from them.
Counting back also makes you think per subject. A hard subject with a lot of material needs a longer run-up than one you already know, even if its exam comes later.
Step by step
- Write down the exam: day, time and what it covers. Check the syllabus or course page for the exact chapters; “everything” is not a scope.
- Estimate the hours. Count the material, not your hopes: about an hour per lecture to revise it properly, plus time for past papers. As a rough start: 4 hours for a subject you know, 8 for an average one, 15 or more for a hard one.
- Pick a run-up. A week for an easy subject, two for an average one, three for a hard one. If the exam is sooner than that, the run-up is what is left.
- Cross out what is taken. Classes, work, training, travel. Only the hours that are left are study time.
- Cut the hours into sittings of about 90 minutes, one a day for this subject. Long enough to get into it, short enough to stay sharp. Two sittings of the same subject on one day mostly give you the second one at half strength.
- Space them, then tighten them. Every two or three days at the start, nearly every day in the final week. Spacing is what makes material stick; the tight end keeps it fresh.
- Keep the last one to three sittings for review. Shorter, and only material you have already covered: past papers, your own summaries, the questions you got wrong.
- Keep the exam day itself free for this subject, and leave a little slack for what runs over.
A worked example: statistics, hard, 15 hours
Say your statistics exam is in three weeks and you estimate 15 hours. It is hard, so you use the full three-week run-up. Laid out, the plan has twelve sittings:
- 21, 18, 15, 13 and 11 days before: 1 h 30 of new material each time.
- 8, 6, 5 and 4 days before: 1 h 30, then 1 h 15, the sittings close together now.
- 3, 2 and 1 day before: three reviews of 45 minutes.
An average subject of 8 hours starts two weeks ahead and ends with two 30-minute reviews. An easy one of 4 hours starts a week ahead with one review. Put the plans of all your subjects side by side and you see at once which days get too full; that is where you move the subject with the most slack. The guide to a revision timetable for all your exams shows how to fit several plans together.
Mistakes that sink an exam plan
- Planning days instead of hours. “Tuesday: statistics” says nothing about whether 15 hours fit before the exam.
- Reading instead of testing. Rereading feels productive; past papers and closed-book recall are what show you what you know.
- No room for the unexpected. One lost evening should move a sitting, not wreck the week. Leave a few hours unplanned.
- Giving up sleep. An hour less sleep costs more the next day than an hour of study gains.
- Never updating the estimate. After the first week you know whether 15 hours was right. Change the number and let the plan follow.
How Orondia does this for you
In Orondia you create a task and switch on It is an exam. You give the exam day, how hard it is (easy, medium or hard) and how many hours you want to study. The planner then lays out exactly the plan above: a run-up of one, two or three weeks (or the start you choose: so many weeks before, or from a date), one sitting a day, closer together towards the exam, and one to three reviews at the end, marked as review in your calendar.
The sittings go into your free time, around your classes and your other exams, and never over the daily maximum of task time you set (4 hours by default). Miss a sitting and the sittings still ahead are laid out again with the missed minutes added. Change the exam day, the hours or the difficulty, and you get a new plan.
Make a free account and put in your first exam; the welcome plans your first week before you finish it.
Frequently asked questions
- How many hours should I study for an exam?
- Count the material: roughly an hour per lecture to revise it, plus a few hours of past papers. That usually lands between 4 hours for a subject you already know and 15 or more for a hard one. Check after a week and adjust.
- How far ahead should I start studying?
- A week for an easy subject, two weeks for an average one and three for a hard one. Starting earlier than that spreads the sittings so thin that you forget between them; starting later leaves no room for review.
- How long should one study session be?
- About 90 minutes for new material, with a short break in the middle if you need it. Reviews can be shorter, 30 to 45 minutes. Two long sessions of the same subject on one day rarely beat one.
- What if I fall behind?
- Move the missed hours forward rather than dropping them, and see whether they still fit before the exam. If they do not, cut scope on purpose (the chapters that count least) instead of cutting sleep. Orondia moves missed minutes into the sittings still ahead by itself.
- Should I study on the day of the exam?
- Not for that subject, beyond a quick look at your own summary. The last review the day before does more than a rushed morning.