Compound Interest
by Anonymous
Move principal, rate and time to see where compound interest pulls away from simple interest, and test the Rule of 72.
About this app
Compound Interest is an interactive financial literacy app for comparing simple and compound growth. Adjust the principal, annual return, and time period to see when compounding pulls ahead, then estimate doubling time with the Rule of 72. A starting-late simulation and guided missions highlight how time affects long-term growth.
Use cases
- Learners exploring compound interest
- Adults building basic financial literacy
- Teachers demonstrating simple versus compound growth
- Anyone practicing the Rule of 72
- Users examining the cost of delaying investment
Features
- Sliders for principal, annual return, and years
- Side-by-side simple and compound interest comparison
- Doubling-time estimate checker
- Rule of 72 calculation
- Ten-year delayed-start comparison
- Guided interactive missions