Retirement

Roth IRA Calculator

Project the future value of a Roth IRA from the current balance, annual contribution, expected annual return, and investment period. Compare total contributed principal with estimated investment growth in the ending balance.

Estimated result

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Estimates are for planning only. Confirm the rates, taxes, fees, and contribution rules that apply to you.

Input parameters

Current Roth IRA balance: Current tax-advantaged account value.
Annual Contribution: The amount added to the account each year.
Expected annual return: Expected yearly investment growth.
Years to invest: Number of years contributions and growth continue.

Understanding the results

Future Roth IRA value: Projected tax-free account balance.
Total contributions: Starting balance plus future contributions.
Estimated growth: Projected balance above contributions.

Calculation principle

The existing balance compounds annually and each annual contribution is modeled as an ordinary annuity.

Read and validate the entered values.
Convert percentages and time periods into compatible units.
Apply the formulas below and present the calculated results.

Formulas

Future value FV = PV(1 + r)^n + PMT × ((1 + r)^n − 1) / r

Growth Growth = FV − PV − PMT × n

Symbols refer to the corresponding input and result labels shown above.

How to use this calculator

Enter your figures, choose any available options, and select Calculate. You can change the inputs as often as you like to compare scenarios.

Planning note

Results are estimates for education and planning. Taxes, lender rules, fees, and investment returns can vary, so verify important decisions with a qualified professional.