Free: Leitner 5-Box Schedule

The classic 5-box spaced repetition schedule with a 28-day interval grid. Print it, stick it to your box, and stop guessing which intervals to follow.

The 5-box system is the original setup Sebastian Leitner described — and it’s the sweet spot for most learners. Longer intervals mean fewer review sessions for well-known cards, and a clear graduation path from Box 1 to Box 5.

What you get:

Classic 5-box intervals (1, 2, 4, 8, 16 days)
Blank template + filled example on one page
Print and stick it to your study box

A printable US Letter PDF with your daily 5-box review schedule.

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The 5-Box Intervals

Box 1: Daily
Box 2: Every 2 days
Box 3: Every 4 days
Box 4: Every 8 days
Box 5: Every 16 days (learned / archive)

The schedule PDF includes a 28-day calendar grid showing which boxes are due on each day, so you never have to calculate intervals manually.

When to Switch from 3 to 5 Boxes

Move to a 5-box system when your 3-box system is running smoothly and Box 3 is filling up. Splitting Box 3 into Boxes 3 and 4 gives well-known cards more breathing room and reduces daily review load over time. See the guide on 3 vs 5 vs 7 boxes for more detail.

Ready to run your whole Leitner system from one sheet?

The Leitner OS Dashboard is a Google Sheet with everything pre-built: a Due Today list, box-by-box counts, a rewrite queue for problem cards, and settings you can adjust in seconds. No app, no subscription, no installation.

✓ Know which cards are due today — automatically
✓ Spot backlog before it hits you
✓ Track which cards need rewriting, not just more repetition
✓ No app. No syncing. Just a Google Sheet.

See the Dashboard →

One-time purchase. Make a copy in 30 seconds.