Investment Calculator Suite

Plan your financial future with calculators built for stocks, ETFs, index funds, and passive income strategies. All figures in US Dollars ($).

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Monthly Investment Calculator

See how consistent monthly contributions compound over time. Uses annual compounding with contributions aggregated per year.

Initial Investment ($) ? Enter $0 or a valid positive amount.

Monthly Contribution ($) ? Enter a valid monthly amount.

Years to Grow ? Enter a value between 1 and 60 years.

Annual Return Rate (%) ? Enter a rate between 0.1% and 50%.

📊 Growth Breakdown by Year

📋 Year-by-Year Breakdown

Year	Beginning Balance	Annual Contributions	Interest Earned	Total Interest	Ending Balance

Disclaimer: This calculator is for educational and illustrative purposes only and does not constitute financial advice. Results are projections based on constant rates and do not account for inflation, taxes, or market volatility. Past market performance does not guarantee future returns. Always do your own research and consult a licensed financial advisor before making investment decisions. This page contains affiliate links. InvestingEngineer.com may earn a commission if you join through the link above, at no extra cost to you.

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Target Amount Calculator

Work backwards from your goal. Enter how much you want to accumulate and find out exactly what monthly investment you need to get there.

Target Amount ($) ? Enter a valid target greater than $0.

Years to Grow ? Enter a value between 1 and 60 years.

Annual Return Rate (%) ? Enter a rate between 0.1% and 50%.

📊 Growth Breakdown by Year

📋 Year-by-Year Breakdown

Year	Beginning Balance	Annual Contributions	Interest Earned	Total Interest	Ending Balance

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Retirement Fund Calculator

Using the 4% Safe Withdrawal Rule, find out how large your fund needs to be to sustain your desired lifestyle throughout retirement.

How the 4% Rule works: Target Fund = Annual Expense ÷ 4%. Each retirement year you withdraw your annual expense; the remaining balance continues to grow at your estimated return rate. If the return exceeds 4%, your fund can last indefinitely.

Monthly Expense ($) ? Enter a valid monthly expense.

Estimated Return Rate (%) ? Enter a rate between 0.1% and 50%.

Retirement Years ? Enter a value between 1 and 60 years.

📋 Retirement Fund Simulation

Year	Beginning Balance	Less: Withdrawal (4%)	Remaining Balance	Add: Est. Return	Ending Balance