📈 Free Investment Calculator

Our free investment calculator helps project how your money grows through compound interest and regular contributions over time.

Uses A = P(1+r/n)^(nt) + PMT × [((1+r/n)^(nt)-1)/(r/n)] where P=initial, r=rate, n=compounds/year, t=years, PMT=monthly.

1. Enter initial investment amount.
2. Set monthly contribution.
3. Choose expected annual return.
4. Select time horizon.
5. Click Calculate to see projected growth.

What is a good return rate?

The S&P 500 historically averages 7-10%. Use 7% for conservative estimates.

Does monthly contribution matter?

Yes. Consistent contributions significantly boost returns through dollar-cost averaging.

What is the rule of 72?

Divide 72 by your return rate to estimate doubling time. At 7%, money doubles every ~10.3 years.

This tool is for informational purposes only and does not constitute financial advice. Consult a qualified financial professional for advice specific to your situation.

Start investing early - time is the most powerful factor in compounding. Diversify across asset classes and reinvest dividends.