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Savings Growth Calculator

Project how your savings will grow over time with regular contributions and compound interest. Plan your savings goals with a clear growth timeline.

Projected Growth

$280,657
Total Value After 20 Years
Initial Deposit$5,000
Total Contributions$120,000
Total Deposited$125,000
Interest Earned$155,657
Interest as % of Total55%
Deposits 45%Interest 55%

Growth Milestones

Year 5$42,885
Year 10$96,591
Year 15$172,726
Year 20$280,657

How Savings Growth Works

Your savings grow through two mechanisms: your regular contributions and compound interest on the accumulated balance.

The future value combines the growth of your initial deposit and regular contributions:

FV = P(1+r)n + PMT × ((1+r)n − 1) ÷ r

Where P = initial deposit, PMT = monthly contribution, r = monthly rate, and n = total months.

The power of compound interest becomes dramatic over longer periods. Starting early — even with smaller amounts — typically outperforms starting later with larger contributions.

Frequently Asked Questions

For a diversified stock portfolio, 7% is a commonly used long-term average (after inflation). High-yield savings accounts offer 4-5%, CDs offer 3-5%, and bonds typically yield 3-6%. Use a conservative estimate for planning.

No. To see real (inflation-adjusted) growth, subtract the expected inflation rate (typically 2-3%) from your return rate. For example, use 4-5% instead of 7% for inflation-adjusted stock returns.

A common guideline is to save 15-20% of your gross income. Start with whatever you can afford and increase over time. Even small amounts benefit greatly from compound interest over long periods.

No. Returns in tax-advantaged accounts (401k, IRA, Roth IRA) grow tax-free or tax-deferred. In taxable accounts, you may owe tax on interest, dividends, and capital gains each year.

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