BLOCK3AI · SIMPLE FINANCIAL TOOLS

Investment Calculator

Explore how an initial investment and regular contributions could grow over time.

Initial investment (USD) $0–$1 billion. Include cents if needed.

Monthly contribution (USD) $0–$1 million, deposited at each month’s end.

Years to grow A whole number from 0 to 100.

Annual return (%) −100% to 100%. Nominal rate; divided by 12 monthly.

Your estimated results

Estimated future value
Total contributions
Estimated growth / loss

How this estimate works

Returns compound monthly at your annual rate divided by 12. Contributions arrive at the end of each month. The rate and contribution stay constant throughout the projection. Total contributions include your initial investment.

A negative rate models a steady monthly decline. An annual input of −100% means −8.33% per month, not a complete loss in one year.

Projections are illustrative estimates, not guarantees or financial advice. Actual returns vary. Taxes, fees, and inflation are not included.

Built by Block3AI · Amounts shown in US dollars (USD)