Spaced Repetition Schedule for Exams: Intervals, Examples and a Calendar

Want the dates without the maths? The free spaced repetition schedule calculator takes your exam date, number of topics, study days and daily minutes, and exports a calendar. No account needed.

Spaced repetition schedules by exam date

Day 1 is the day you first study a topic properly. Each number is the day of a review, counted from that day. These are starting points, not laws.

Every row follows the same logic: the first review comes quickly, because that is when most forgetting happens, and each later gap is longer. If you fail a review, restart that topic from a short gap instead of keeping to the plan.

What the research supports, and what it does not

The spacing effect is one of the most replicated findings in learning research. Cepeda and colleagues (2006) analysed 839 assessments from 317 experiments and found that spreading study sessions out beats massing them, and that the best gap grows as the retention interval grows.

Their 2008 study with more than 1,350 people made this concrete. As a share of the time until the test, the optimal gap fell from about 20-40% for a test one week away to about 5-10% for a test one year away. For an exam in 30 days, that suggests a first gap of a few days, not a few hours and not three weeks. It also means there is no universal "1-3-7" schedule that is best for everyone.

Spacing works best when each session is a retrieval attempt. In Roediger and Karpicke (2006), students who restudied did better on a test five minutes later, but students who had tested themselves did better two days and one week later, even though the restudy group felt more confident. Dunlosky et al. (2013) rated practice testing and distributed practice as the only two "high utility" techniques out of ten.

For medical students specifically, a 2026 meta-analysis of 13 studies and 21,415 learners (Maye & Hurley) found a clear advantage for spaced repetition over standard studying on objective tests, with flashcards, emailed questions and spaced quizzes all counted.

Work out your own first gap

The two anchor points from Cepeda et al. (2008) are enough to size your first gaps with a calculator on your phone. Multiply the days left until the exam by the share, and round to whole days:

One caveat keeps this honest. The 2008 study measured a single gap between two study sessions followed by a test; it did not test a chain of five reviews. Use the numbers to size the first gaps, then let your recall results set the later ones, as described in adjusting the gap to your results.

The forgetting curve, read correctly

Spaced repetition guides love the claim that "you forget 70% within 24 hours". That number does not come from Ebbinghaus the way it is usually quoted. He tested himself on nonsense syllables and measured savings: how much less time it took to relearn a list. After one day his savings were about a third, and a 2015 replication by Murre and Dros found a similar curve. That is not the same as forgetting 70% of a lecture you understood. Meaningful material fades more slowly than nonsense syllables. The part that does transfer is the shape: a steep early drop, then a slow tail. That is why the first review comes fast.

A worked week: 12 topics, 30 days, one hour a day

Example Say you have 12 topics, study Monday to Saturday, one hour a day. A first proper study of a topic takes about 30 minutes; a review (answer from memory, check, correct) about 10. Using reviews at +1 and +4 days in the first week, the plan looks like this:

Two things show up quickly. First, you can only add about one new topic a day once reviews start, so all 12 topics are introduced by the end of week 2 (if the reviews still fit), leaving room for the longer gaps before day 30. Second, Friday is already full. By week 3 reviews pile up and you will need to either add time or drop to fewer new topics. Seeing that on day 1 is the point of planning; the exam study plan calculator checks whether the whole syllabus fits before you start.

The same worked week in the calculator

To check the hand-made plan, I entered the same numbers into the calculator with the same inputs: 12 topics, exam in 30 days, 60 minutes a day, 30 minutes for a first study pass, 10 minutes per review, Monday to Saturday. It was run on 25 September 2026, so the calendar starts on a Friday.

Neither plan is "the" right one. The hand-made week puts an extra early review on every topic, which suits hard material; the calculator gets the whole syllabus started sooner and keeps every day inside your minutes, which suits a broad exam. A reasonable mix is to accept the calculator's dates and add a same-week retrieval by hand for the two or three topics you found hardest.

What to do in each review session

1. Close the source. Read the question or topic title only.
2. Retrieve in the exam format. Say it aloud for an oral, write the derivation for a calculation exam, apply the rule to a case.
3. Check against the source. Compare with the slide, page or worked example.
4. Repair one failure. Write the missing step or correction, not a new full summary.
5. Set the next gap from the result. Use the rule in the table below.

Adjust the gap to your results

Paper cards: the Leitner system

If you prefer paper, the Leitner system does the scheduling for you. One common setup uses five boxes: box 1 every day, box 2 every two or three days, box 3 once a week, box 4 every two weeks, box 5 before the exam. A correct answer moves the card forward one box; a wrong answer sends it back. It is crude, but it applies the same principle as the apps.

Anki and other apps: what they automate

Anki and similar apps calculate a separate gap for every card from your answers. Since version 23.10, Anki includes the FSRS scheduler as an alternative to its older SM-2-based algorithm. With FSRS you set a "desired retention"; the Anki manual says the default of 90% "will schedule cards so you have a 90% chance of remembering them" when they come up. Higher retention means more reviews per day.

What apps do not do is plan your topics. They do not know your exam date, how many hours you have, or that a whole lecture has no cards yet. Use a topic calendar like the one above for coverage, and the app for card-level timing. If your cards come from lecture slides, see how to make Anki cards from lecture slides.

What if the exam is in 3 days?

You can still space, just on a smaller scale. Study each topic, then retrieve it again later the same day, the next day and on the last day, mixing topics in each session. At this point scope matters more than timing: decide which topics are most likely to be examined and practise those in the exam format. A long-term schedule copied into three days is just cramming with extra steps.

Five mistakes that break the schedule

• Using rereading as every "review".
• Starting topics so late that no long gap fits before the exam.
• Giving every topic the same time regardless of difficulty and weight.
• Ignoring daily capacity until the calendar collapses in week 3.
• Only reviewing definitions when the exam asks for comparison, application or explanation.

Mixing topics within a session (interleaving) can help when the exam requires you to tell problem types apart, but the benefit depends on the material. Mix related topics on purpose, not at random.

From dates to study material

The calculator handles timing. Memoniq provides the retrieval material: one set of course files becomes a source-grounded summary, flashcards, quizzes, lessons and oral practice, and mastery signals show which topics need an earlier review. The loop is plan, retrieve, check, repair, reschedule. For turning a folder of files into topics you can schedule, see how to build an AI study guide from your course files.

Limits

A generic schedule cannot know item difficulty, prior knowledge, sleep, stress or the quality of your sources, and it does not predict a grade. Clinical, legal and safety-critical content must be checked against current authoritative material.

Once the dates are set, the reviews need material to retrieve. If your course lives in PDFs, turn a PDF into recall questions first, then slot those cards into the calendar.

Sources and further reading

• Cepeda et al. (2006), Distributed practice in verbal recall tasks: a review and quantitative synthesis
• Cepeda et al. (2008), Spacing effects in learning: a temporal ridgeline of optimal retention
• Roediger & Karpicke (2006), Test-enhanced learning
• Dunlosky et al. (2013), Improving students' learning with effective learning techniques
• Murre & Dros (2015), Replication and analysis of Ebbinghaus' forgetting curve
• Maye & Hurley (2026), Spaced repetition in medical education: systematic review and meta-analysis
• Roediger & Butler (2011), The critical role of retrieval practice in long-term retention
• Brunmair & Richter (2019), Interleaved learning meta-analysis
• Anki manual: deck options and FSRS