Study hours per day:
total hours ÷ days

Study hours per day: the formula

Study hours per day equal the total study hours you need divided by the number of days you have. If you need 180 hours and have 45 days, you need 4 hours every day. There is no single right number for everyone, so the sensible way to decide is to plan backwards from your exam date.

How to plan backwards from the exam

1. 1List every subject or chapter and estimate the hours each needs.
2. 2Add a revision block, often a quarter to a third of the study time.
3. 3Count the days left and remove rest days, travel days and other commitments.
4. 4Divide total hours by the study days that remain.
5. 5Check whether the answer is a load you can keep for weeks.

Be honest about the hours. They should be hours of focused work, not hours at a desk, so do not count long breaks or time spent scrolling.

Why you should take out rest days first

Many students divide by every calendar day and then miss the target. Take 180 hours over a six-week window of 42 days. At 4.29 hours per calendar day it looks fine, but if you rest one day a week, only 36 days remain and you actually need 5 hours on each of them.

That is the reason to count real study days. The table shows how quickly the daily load rises when the days fall.

Check the plan weekly. If you studied 22 hours in a week that was planned for 28, you are 6 hours behind. Spread those 6 hours across the remaining study days, or move them to a rest day only if you are not tired, rather than hoping to catch up in one long session.

Splitting hours between subjects

Share the total in proportion to the weight and your confidence. Of 180 hours, a heavy subject might take 35 percent, or 63 hours, a medium one 30 percent or 54 hours, another 25 percent or 45 hours, and 10 percent or 18 hours is kept for mock tests. The pieces add back to 180.

Common mistakes

• Counting days you will not really study.
• Treating every subject as equal when your strengths differ.
• Skipping sleep to hit a target. Poor sleep reduces how much you retain.
• Forgetting revision and mock tests, which need their own hours.
• Setting a plan so tight that one missed day breaks it.

This planner is a guide, not advice about your health or your results. If heavy study is affecting how you feel, speak to a teacher or a counsellor.

A short example of a realistic plan: 120 hours for a 5-week term, with 24 study days, needs 120 ÷ 24 = 5 hours a day. If five hours feels too heavy, the fix is either more days or fewer hours of content, never a quiet decision to skip revision.