Project your savings growth with regular contributions and compound interest.
Your Savings Plan
Regular amount added each month
HYSA: ~4–5%. Blended portfolio: 6–8%
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Projected Savings Growth
Estimated
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See how your savings grow over time with regular monthly contributions and compound interest. Set a savings goal and find out exactly when you'll reach it, or enter your current plan to see where you'll be in 5, 10, or 20 years.
The key insight is that compounding means your interest earns interest. Even at a modest 5% annual return, $500/month compounded monthly for 20 years grows to over $206,000 — on just $120,000 of contributions. The extra $86,000 comes entirely from compounding.
Contributions are made at the beginning of each period.
Interest is compounded at the selected frequency.
Annual return is assumed constant — real investment returns vary.
No taxes on earnings are deducted (relevant for taxable accounts).
For investment projections: historical S&P 500 average is ~10% nominal, ~7% after inflation. Past performance does not guarantee future results.
It depends on where the money is invested. High-yield savings accounts (HYSA) currently offer 4–5% APY. US Treasury bonds are around 4–5%. A diversified stock/bond portfolio might average 6–8% annually over long periods. The S&P 500 has historically returned about 10% annually before inflation. Use conservative estimates (4–6%) for conservative planning.
The most cited guideline is to save at least 20% of your gross income (the 50/30/20 budget rule). A common minimum target is 15% for retirement. Start wherever you can and increase contributions by 1% per year — small increases compound over time just like interest does.