Free Tool — Best Study Tips

Spaced Repetition Calculator

Tell it what you're studying and when your test is. It builds a review schedule using the spacing intervals behind the forgetting curve and Anki's SM-2 algorithm — so you review each thing right before you'd otherwise forget it. Read the full guide on how to use spaced repetition.

Everything runs in your browser. Nothing is saved or sent anywhere — change any field and regenerate as many times as you like.

Your review schedule

How this works: Each algorithm spaces reviews at increasing intervals so you revisit material right as you're about to forget it — the core idea behind the spacing effect. SM-2 mimics Anki's default scheduling. Leitner mirrors the physical five-box flashcard system. Classic spacing follows the simple 1-3-7-14-30 day pattern used in many study guides. If you set an exam date, intervals compress automatically so your last review lands 1–2 days before it.

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