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Days until exam
Toppers revise each topic at growing gaps — 1, 3, 7, then 21 days after studying it. Enter your topics and exam date; get a printable day-by-day revision timetable that schedules every revisit for you.
Memory fades fastest in the first days after studying — the "forgetting curve" Hermann Ebbinghaus measured back in 1885. Each time you recall a topic just as it starts to fade, the memory re-forms stronger and fades slower. That is why four revisits spread over three weeks beat eight back-to-back re-readings: it is the spacing that builds long-term memory, not the repetition count. Toppers who "revise thrice" are usually running exactly this pattern by hand — this tool just schedules it for you across your whole syllabus.
The logic is transparent, so you know exactly what you are following:
| Step | What it does |
|---|---|
| 1. Distribute | Your topics are spread evenly across the available days (minus the final-revision buffer), in the order you listed them — so put tough or high-weight topics first. |
| 2. Schedule revisits | Each topic gets a revisit at every interval (default 1, 3, 7, 21 days after its first study), as long as it lands before the exam. |
| 3. Auto-compress | If the exam is close, intervals that don't fit are dropped automatically and you are told — a 10-day runway uses 1-3-7, not 1-3-7-21. |
| 4. Final buffer | The last day or two stay free of new topics — reserved for one fast full revision of everything. |
A revisit should take roughly 20–30% of the original study time — and it is recall, not re-reading. Close the book, write the key points or answer questions from memory, then open your notes to check what you missed. Mark topics you struggled to recall and give them one extra pass in the final-revision buffer. Days marked "free slot" are ideal for mock tests or your marked weak areas.
Revisit a topic 1, 3, 7 and 21 days after first studying it — each revisit lands just as the memory starts to fade, which is when reviewing strengthens it most. The numbers are a popular heuristic; the spacing principle behind them is solid science.
Three to four spaced revisits plus one final full revision is a widely used target. Spacing matters more than count.
About 20–30% of the original study time, done as active recall — close the book, recall, then check. A 2-hour chapter needs roughly 25–35 minutes per revisit.
Do the overdue revisits first the next morning, before new topics, then continue as printed. Don't restart the timetable — a revisit that's a day late still works almost as well.
The spacing effect has been demonstrated consistently since Ebbinghaus's 1885 forgetting-curve experiments. The 1-3-7-21 pattern is a practical application of it, not a magic formula.
Yes — it's pure scheduling logic, exam-agnostic. Enter your own topic list and date; it handles the rest, compressing intervals if your exam is close.