Tool · Memory & Retention

Forgetting Curve Simulator

Explore how memory changes over time and how spaced repetition improves retention.

This interactive simulation demonstrates the concept of the Ebbinghaus forgetting curve. It is an educational visualisation rather than an exact prediction.

Learning context

Adjust conditions to see how retention shifts.

Course duration4 weeks

Content complexity

Learner engagement

Initial assessment score80%

Number of review sessions3

Enable spaced repetition

Reviews distributed across 30 days.

Retention over 30 days

Estimated % remembered

Day 1

46%

Without review: 46%

Week 1

19%

Without review: 19%

Month 1

38%

Without review: 4%

Practical recommendations

Break content into microlearning modules of 5–10 minutes.