Roth IRA Calculator – Tax-Free Retirement Growth
Calculate your tax-free retirement nest egg in a Roth IRA with annual contributions ($7,000 limit) and compound growth.
What this calculator does
The Roth IRA Calculator estimates your result instantly from the values you enter, using standard retirement formulas. Calculate your tax-free retirement nest egg in a Roth IRA with annual contributions ($7,000 limit) and compound growth. Calculations run in your browser, so nothing you type is sent to a server, and the output is an estimate for planning rather than financial advice.
Your Tax-Free Roth IRA Projection
Final Tax-Free Balance at Retirement
- Monthly Contribution $0.00
- Total After-Tax Contributions $0.00
- Tax-Free Investment Gains $0.00
What This Means
About Roth IRA Calculator
The Roth IRA Calculator computes the future value of tax-free retirement wealth in a Roth IRA, illustrating how after-tax contributions grow 100% tax-free with zero income tax owed on qualified withdrawals after age 59½.
Formula & Mathematical Calculation
Future value = Current balance × (1 + r)n + PMT × [(1 + r)n − 1] ÷ r
Total contributed = Current balance + Annual contribution × Years
Displayed gain = max(0, Future value − Total contributed)
r is the expected annual return divided by 100 and 12, n is whole years × 12, and PMT is annual contribution ÷ 12. Contributions are treated as equal end-of-month deposits. At 0% return, no compounding is applied.
Calculation Example
Example: With a $7,000 annual contribution, $0 current balance, an 8.5% expected annual return, and 35 years, the monthly contribution is $583.33. The calculator produces a future value of $1,514,080.32, total contributed of $245,000.00, and displayed gain of $1,269,080.32.
Key Benefits
- Projects the entered current balance and future monthly deposits
- Shows the annual contribution as a monthly amount
- Separates total contributed from projected gain
- Supports a 0% expected-return scenario
How to Use this Calculator
-
Enter annual contribution
Provide the amount planned for contribution each year; the calculator divides it into monthly deposits. -
Enter current balance
Add the current Roth IRA balance, or leave it blank for zero. -
Set return and years
Enter an expected annual return and the number of whole years until retirement. -
Review the projection
Compare future value, monthly contribution, total contributed, and projected gain.
Assumptions & Limitations
What the calculation assumes
- Every value you enter is treated as an exact, known amount.
- Rates and contributions are assumed to stay constant for the whole period unless the form asks for them separately.
- Results use standard financial formulas and ignore fees, penalties and promotional terms that are not entered above.
- Inflation, tax changes and market volatility are not modelled unless a field for them is provided.
- Amounts are unit-agnostic: results are returned in the same currency you enter.
What it does not cover
- Roth IRA Calculator produces estimates for education and planning, not a quote, offer or professional advice.
- Real-world outcomes differ when fees, taxes, rounding rules or provider-specific terms apply.
- Local regulations and tax rules vary by country and change over time; verify current rules for your jurisdiction.
- Figures are only as accurate as the inputs you supply — check them before acting on the result.
- For decisions with lasting financial impact, confirm the numbers with a qualified professional.
Frequently Asked Questions
Free to use, no account needed. Calculations run in your browser, so nothing you type is sent to a server. Results are estimates — how we build and check our calculators.
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