About the Roth IRA Calculator
Roth IRA Calculator helps estimate the key numbers involved in retirement decisions. It is designed for quick scenario comparison: enter a realistic set of values, calculate the result, then change one assumption at a time to see what has the greatest effect. Unlike a static table, the result responds to your inputs and keeps the calculation in your browser. Amounts are displayed in U.S. dollars for consistency, but the mathematical formulas can be used with another currency when every monetary input uses that same currency.
How to use this calculator
Enter values that match your situation and select Calculate result. Review the main result and its supporting figures, then change one input at a time to compare scenarios. Results are rounded for readability while the calculation retains additional precision internally.
Information you will need
- Starting amount
- Monthly contribution
- Annual return
- Years
How the calculation works
Projects growth with monthly compounding and contributions. Read the primary result together with the supporting values rather than focusing on one number alone. A useful estimate should make its assumptions visible. If the answer looks surprising, verify the unit, rate, time period, and whether the entered value is gross or net. Run a conservative and an optimistic scenario to understand the range of possible outcomes.
Formula or method
FV = P(1+r)n + C((1+r)n - 1)/r.
Worked example
$10,000 + $250/month at 7% for 10 years.
The example is illustrative rather than a recommendation. Use your own verified values and keep all monetary or measurement units consistent. When comparing alternatives, save or note each result so the assumptions do not become mixed.
How to interpret the result
The primary output answers the main question posed by the roth ira calculator, while the additional cards provide context. A result with many decimal places is not necessarily more certain. The displayed precision makes comparison easier, but uncertainty in the inputs can be larger than the rounding difference.
Compare the result with a second scenario using a less favorable rate, return, cost, or time period. This sensitivity check often provides more useful planning information than one best-case projection.
Limitations and important notes
The roth ira calculator is a planning tool, not a quote, filing calculation, lending decision, or promise of future performance. It does not automatically retrieve live market rates or apply every fee, tax bracket, program rule, product limit, or state law. Rules for products such as FHA, VA, Social Security, retirement accounts, and taxes can change. Confirm time-sensitive values with the lender, plan administrator, IRS, SSA, or another relevant authority before acting.
Frequently asked questions
What is a Roth IRA?
A Roth IRA is an individual retirement account funded with after-tax dollars, meaning you get no upfront tax deduction but qualified withdrawals in retirement are completely tax-free, including all investment growth. Contributions can be withdrawn anytime without tax or penalty, and earnings are tax-free after age 59 1/2 and a five-year holding period. Unlike traditional IRAs, Roth IRAs have no required minimum distributions during your lifetime, which makes them ideal for leaving money to heirs. Income limits restrict who can contribute directly.
What are the Roth IRA contribution limits?
For 2025, the Roth IRA contribution limit is $7,000, or $8,000 if you are age 50 or older. For 2026, the limit rises to $7,500, or $8,600 with the catch-up. You cannot contribute more than your earned income for the year, and you must meet income thresholds to contribute directly. The limit is shared across all traditional and Roth IRAs you own, so contributions to both count toward the same cap. The limits are indexed annually for inflation and change from year to year.
What are the Roth IRA income limits?
Direct Roth IRA contributions phase out at higher income levels. For 2025, single filers begin phasing out between $150,000 and $165,000 of modified adjusted gross income, while married couples filing jointly phase out between $236,000 and $246,000. In 2026 those ranges rise to $156,000 to $171,000 for singles and $246,000 to $261,000 for joint filers. Above the upper limit you cannot contribute directly, but the backdoor Roth strategy offers a legal workaround. Partial contributions are allowed within the phase-out range based on your exact income.
Roth IRA vs traditional IRA: which is better?
A traditional IRA gives an upfront tax deduction on contributions, then taxes withdrawals as ordinary income in retirement, and requires required minimum distributions after age 73 or 75. A Roth IRA offers no deduction but provides tax-free withdrawals, no RMDs, and tax-free growth for heirs. Choose a Roth if you expect a higher tax rate in retirement or want flexibility, and a traditional IRA if you need the current deduction and expect a lower future rate. Younger earners and those who may retire in higher brackets often favor Roth.
What is a backdoor Roth IRA?
A backdoor Roth IRA lets high earners who exceed the Roth income limits still get money into a Roth account. You contribute to a traditional IRA, which has no income limit, and then convert that balance to a Roth IRA. The conversion may be tax-free if you have no other pretax IRA money, but the pro-rata rule can make part of it taxable if you do. You should generally report Form 8606 for nondeductible contributions and conversions. Confirm you have no existing traditional IRA balances before using this strategy.
Can I withdraw contributions from a Roth IRA anytime?
Yes, you can withdraw your original contributions from a Roth IRA at any time and for any reason, free of tax and penalty, because that money was already taxed. Earnings, however, are only tax-free if the account has been open at least five years and you are age 59 1/2 or meet an exception such as disability or a first-time home purchase of up to $10,000. Ordering rules treat contributions as coming out first, so you can tap your own money early without trouble. Avoid withdrawing earnings before the rules are met.
What is the Roth IRA 5-year rule?
The 5-year rule states that a Roth IRA must be open for at least five tax years before qualified distributions of earnings become tax-free, even if you are already 59 1/2. The clock starts on January 1 of the year you made your first contribution. Conversions have a separate five-year rule: each conversion must age five years before it can be withdrawn without a 10 percent penalty, though the taxable portion avoids penalty after 59 1/2. Meeting both rules ensures withdrawals of earnings are entirely tax-free.