Return on Investment (ROI) Calculator

Model projected returns with annual compounding, beginning-of-period contributions, and optional inflation adjustment.

Inputs

Initial amount

Recurring contribution

Contribution frequency

Contributions happen at the start of each period.

Years

Expected annual rate of return (%)

Tax on profit (%)

Inflation (%)

Inflation handling

Adjust contributions each year for inflationShow results in today's dollars

Assumptions

Contributions are at the start of each period. Returns are reduced by the tax rate you set. Compounded results keep profits in the balance; simple results keep profits separate.

Disclaimer: This tool is for educational illustrations only and does not constitute financial advice. Results are estimates based on your inputs and assumptions; actual outcomes can differ.