Savings Growth Planner

A savings growth planner estimates how your savings can grow over time by calculating compound interest on your initial balance and regular contributions. It factors in your contribution frequency, interest rate, and time horizon to project your future savings balance.

The contribution frequency affects how often money is added to your savings and how often interest compounds. More frequent contributions (weekly vs monthly) can slightly increase your final balance because money starts earning interest sooner. Bi-weekly means 26 contributions per year, weekly means 52.

For high-yield savings accounts, use 3-5% (current rates as of 2025). For conservative investments, use 5-7%. For moderate stock market investments, historical averages are 7-10%. For aggressive growth investments, some use 10-12%. Always use realistic, conservative estimates for planning.

Compound interest is calculated by applying the interest rate to your balance at each contribution period. Your balance grows from both interest earned and new contributions. Interest earned in earlier periods earns additional interest in later periods, creating exponential growth over time.

Yes. This planner works for any savings goal including retirement, emergency funds, down payments, or investment accounts. For retirement planning, use longer time horizons (20-40 years) and investment return rates (7-10%). For savings accounts, use shorter horizons and lower rates (3-5%).