Enter how many items you need to learn, your start date, and your deadline — get a day-by-day review schedule using optimal spaced intervals (1→3→7→14→30 days).
How to use this calculator
Enter your items
Flashcards, vocabulary, concepts — however many you need to learn.
Set your dates
When you start and when you need to know the material.
Follow the schedule
New items each day + review sessions at expanding intervals. Copy or print the schedule.
Example output
50 items | 21 days | 20 min/day
Day 1: Learn batch 1 (13 new items)
Day 2: Learn batch 2 + review batch 1 (day 1)
Day 4: Learn batch 3 + review batch 1 (day 3)
Day 8: Review batch 1 (day 7) + batch 2 (day 7)
Why it works
The spacing effect — one of the most robust findings in cognitive psychology — shows that distributing learning over time produces dramatically better long-term retention than massed practice. Cepeda et al. (2006) analyzed 254 studies and found that optimal review intervals expand over time: a short gap first, then progressively longer gaps.
The expanding interval schedule (1→3→7→14→30 days) approximates the forgetting curve — you review just as the memory starts to fade, which strengthens the retrieval pathway. This generator calculates batch sizes and review days based on your timeline and daily capacity.
Key principle: Each review should use active recall (test yourself), not passive re-reading. The combination of spacing + retrieval practice is the gold standard for long-term memory.
Related guides & tools
Frequently asked questions
What intervals does this use?
The default expanding intervals are 1, 3, 7, 14, and 30 days. These are based on the spacing effect literature and approximate optimal gaps for most learners.
Can I use this with Anki or other SRS apps?
Yes — use this schedule as a guide for when to introduce new cards. SRS apps handle interval scheduling automatically, but this tool helps you plan the overall workload across your study period.
What if I miss a review day?
Do it the next day. Missing one day doesn't reset your progress — it slightly weakens the memory, but the next review will recover it. Consistency matters more than perfection.
How we chose sources: Based on the spacing effect research (Cepeda et al., 2006) and expanding retrieval practice schedules. Read our editorial policy →
This tool is for educational purposes only and is not medical advice. Read our medical disclaimer →
Use the schedule with real retrieval, not rereading
Spaced repetition works best when each review asks you to produce an answer before checking it. Use the generator for facts, vocabulary, formulas, concepts, or exam prompts that are worth seeing again. Mark difficult items honestly and rewrite weak cards into clearer questions instead of repeating a confusing prompt for weeks.
After using the tool, write down one next action, one review time, and one sign that the plan is working. This keeps the result from becoming passive advice. If the tool gives a schedule or recommendation, treat it as a starting point and adjust it after real feedback from your energy, recall, focus, or sleep.