Flashcard SM-2 scheduler
Calculate SM-2 repetitions, intervals and easiness from a rating sequence.
Runs in your browserEvery computation happens in your browser — your data never leaves this device.
Rating sequence
Review schedule
Each row shows repetition, interval and EF.
Enter ratings to calculate a schedule
Reviews: 0 · Final interval: 0 · Final EF: 0
What this tool does
- Plan flashcard review dates
- Verify interval changes for rating sequences
Example
Input
5 5 4
Output
#1: 1d (EF 2.60) #2: 6d (EF 2.70) #3: 16d (EF 2.70)
Ratings are 0 to 5; below 3 resets repetitions and intervals follow SM-2.
Frequently asked questions
What is the rating range?
SM-2 ratings from 0 through 5 are accepted.
What happens below 3?
Repetitions reset and the next interval is one day.
How is easiness updated?
The SM-2 formula is applied with a minimum of 1.3.
Keywords：flashcardSM-2spaced repetitionLeitnerreview