Compound interest earns interest on interest, so time matters most. Real investment returns vary and can be negative; treat the result as an illustration.
How it works
- Balance grows by (1 + annual rate ÷ periods per year) each period.
- Rule of 72: years to double ≈ 72 ÷ annual rate (%).
Results are estimates for reference only. Please confirm important decisions with the relevant authority or a professional.