Compound Interest Calculator — Project Investment Growth
Visualize the compounding power of money over time with our free financial growth calculator. Model initial principal investments, recurring monthly contributions, annual interest rates, and compounding frequencies to forecast long-term wealth accumulation. Generate year-by-year balance schedules and interactive charts to plan for retirement, savings targets, and financial independence.
Compound Interest & FIRE Calculator
Visualize the magic of compound interest. See how consistent monthly investments can grow your wealth over time to achieve Financial Independence.
Investment Variables
Historically, the S&P 500 averages around 8-10% annually.
What is FIRE?
FIRE stands for Financial Independence, Retire Early. It's a movement focused on extreme savings and investing to retire decades earlier than traditional budgets allow. The core of this strategy is leveraging compound interest.
Wealth Growth Projection
How to Use
- 1Enter your initial principal investment amount.
- 2Set your expected annual interest rate and monthly deposit.
- 3View your total interest earned and long-term balance curve.
Common Use Cases
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Planning retirement fund trajectories across 10, 20, or 30 years.
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Modeling high-yield savings account (HYSA) earnings over time.
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Comparing regular savings growth against diversified index fund returns.
Frequently Asked Questions
What is the compound interest formula used?
How frequently should interest compound?
Does this calculator account for inflation?
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