Enter your exam date, daily study hours, and subjects to get a personalised study schedule with per-subject hour breakdown.
Calculator
Set your exam date
Add an exam date and at least one subject to generate your personalised study plan.
How the study time planner works
The planner counts the whole days between today and your exam date, subtracts any days off you plan to take, and multiplies by your daily study hours. This gives your total available study time. Research in spaced practice (APA, 2023) shows that distributing study sessions over time is significantly more effective than cramming, so starting early matters.
Hours are then split across your subjects in proportion to their difficulty weights. A subject rated 4 gets twice the time of one rated 2, and so on. You can adjust weights to reflect your personal confidence level in each subject — lower the weight for subjects you find easy, raise it for the harder ones.
How should I set difficulty weights?
Think of difficulty as your personal effort score: 1 means you are very comfortable with the material, 5 means you need the most work. The planner divides total hours proportionally, so a 5 gets five times the time of a 1. Adjust after each study session as your confidence grows.
What counts as a day off?
Any day you do not plan to study at all — weekends, public holidays, travel days, or rest days you build in deliberately. Days off are subtracted before the total hours are calculated, so every remaining day is assumed to be a full study day.
Can I plan for multiple exams?
Set the date of your earliest exam and add all subjects from that period. Once you clear the first exam, update the date and remove the subject — the planner immediately recalculates for the next one.
Results are estimates. Verify with a professional for important decisions.
About this calculator
This calculator helps you build a personalised study schedule by counting down the days to your exam and spreading your available hours across subjects. Enter your exam date, how many hours you can study each day, and any days you expect to take off. Use it whenever you start a new revision cycle or want to rebalance time between subjects.
How to read your results
The headline figure is the total study hours available before your exam. The countdown banner shows the number of calendar days remaining. Below the result card you will find a horizontal bar chart: each row is one subject, and the bar length reflects that subject's share of the total hours — proportional to the priority weight you assigned. The number at the end of each bar is the exact hours allocated to that subject.
Worked example
Exam in 30 days, 3 hours of study per day, 2 days off planned. Three subjects: Mathematics (weight 4), History (weight 2), Science (weight 3).
28 active study days × 3 h/day = 84 total study hours. Total weight is 9. Mathematics gets 4/9 × 84 = 37.3 h, Science gets 3/9 × 84 = 28.0 h, History gets 2/9 × 84 = 18.7 h.
Frequently asked questions
What does the subject weight represent?
Weight is a relative priority you assign — higher means more study time. Only the ratio between weights matters: setting Mathematics to 4 and History to 2 means you will spend twice as long on Mathematics as on History. Any positive numbers work, so 40/20 produces the same split as 4/2.
What counts as a day off?
A day off is any calendar day in the countdown window when you plan not to study — public holidays, rest days, travel, or scheduled breaks. The calculator simply subtracts the number of days off from the total calendar days to find your active study days.
What if my exam date has already passed or is today?
The days-remaining count is clamped to zero, so the total study hours will show 0. Update the exam date to a future date to see a non-zero allocation.
Can I add more than three subjects?
Yes. Use the Add Subject button to include as many subjects as you need. Every subject is included in the proportional allocation automatically.
Does the planner account for how difficult a subject is?
Difficulty is not a separate input. Use the weight field to encode perceived difficulty: give harder or higher-stakes subjects a larger weight so they receive a bigger share of your available hours.
How it's calculated
The planner uses three arithmetic steps. First, it counts the whole UTC days between today and the exam date using integer day arithmetic — no partial days are counted. Second, active study days are found by subtracting days off from the calendar days, clamped at zero to avoid negative results. Third, total study hours equal active study days multiplied by hours per day. The hours are then distributed across subjects in proportion to their weights: each subject receives (its weight ÷ sum of all weights) × total hours. When all weights are zero the hours are split evenly. These formulas follow standard study-hour planning guidance from APA research on spaced practice and acquisition, as well as the day-arithmetic conventions used by general time calculators.
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