Investment Growth Calculator
Project how your investments will grow over time.
$548,915
Final Value
$160,000
Invested
$388,915
Growth
Learn More
Understanding This Calculator
What this calculator does
This calculator projects how a lump-sum investment grows over time at a given rate, separate from ongoing contributions, so you can compare a one-time investment to gradual saving.
How to use the results
- 1.Enter your initial investment amount and expected annual return.
- 2.Set your time horizon (years invested).
- 3.The chart shows year-by-year growth; compare the final value to your starting amount to see the multiplier.
Worked example
A $50,000 lump sum invested at 8% for 25 years grows to roughly $342,000 — nearly 7x your original investment, with $292,000 of that being investment growth.
Important assumptions & limitations
- •Returns are assumed constant — real investment returns vary year to year and can be negative in any given year.
- •Does not subtract investment fees (expense ratios, advisory fees) which typically run 0.05%–1% annually.
- •Pre-tax; in a taxable account, dividends and gains are taxed yearly, slowing compound growth.
Frequently asked questions
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Mike Starr
Founder, FinanceWizardTools · M.S. Organizational Management