Roth IRA Growth Calculator
Estimate how much tax-free money your Roth IRA could grow to by retirement.
How this roth ira calculator helps
A Roth IRA is one of the most powerful retirement accounts because qualified withdrawals are tax-free. That means your contributions and earnings can compound for decades, and later in life you can spend those dollars without federal income tax (assuming IRS rules are met).
This calculator is designed to answer a simple question: if I keep contributing, what could my Roth IRA be worth by retirement? It estimates future value, total contributions, estimated growth, and inflation-adjusted purchasing power.
What each input means
Current age and retirement age
These define your investing timeline. Time is the biggest driver of compound growth, so even small contributions made early can matter a lot.
Current balance
Your starting amount in the Roth IRA. The calculator assumes this balance continues to grow at your expected return rate.
Annual contribution
How much you plan to add each year. Contributions are modeled monthly for smoother compounding.
Expected annual return
Your long-term estimate based on investment mix. No return is guaranteed, so consider running multiple scenarios (conservative, moderate, optimistic).
Contribution increase
If you expect your income to rise over time, this lets contributions increase each year.
Inflation rate
Future dollars buy less over time. The inflation-adjusted value estimates what your final amount may feel like in today’s purchasing power.
Quick Roth IRA rules to remember
- Contributions are made with after-tax dollars.
- Qualified withdrawals are tax-free.
- You generally must satisfy age and 5-year holding requirements for tax-free earnings withdrawals.
- Annual contribution limits and income phase-outs can change; always verify current IRS guidance.
- People age 50+ may qualify for catch-up contributions.
Roth IRA vs. traditional IRA (high level)
A traditional IRA may offer a deduction now, while a Roth IRA usually does not. The tradeoff is taxes later: traditional withdrawals are generally taxed, while qualified Roth withdrawals are not. Your expected current and future tax rates often determine which strategy is better.
Ways to improve your result
- Start early, even with small contributions.
- Automate monthly investing.
- Increase contributions when you get raises.
- Stay invested through market cycles.
- Review asset allocation once or twice per year.
Important note
This calculator provides an estimate, not a guarantee or personalized financial advice. Actual investment returns, tax law changes, account fees, and contribution eligibility can affect your outcome.