Roth IRA Calculator
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.
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
Roth IRA Future Value = PMT × [ (( 1 + r )^n - 1) / r ]
Tax-Free Wealth Gain = Total Future Value - Total After-Tax Contributions
Calculation Example
Maxing Out Roth IRA ($7,000/year = $583.33/mo @ 8.5% Return for 35 Years): Total Contributed = $245,000. Final Tax-Free Balance = $1,475,218.00 ($1,230,218 in 100% tax-free investment gains!).
Key Benefits
- Calculates 100% tax-free compound retirement wealth
- Compares Roth IRA tax-free growth vs. taxable brokerage accounts
- Incorporates IRS annual contribution limits ($7,000 under 50 / $8,000 over 50)
- Demonstrates the power of starting Roth contributions early in life
- Free retirement tool
How to Use this Calculator
-
Enter Starting Roth IRA Balance
Input current account value. -
Enter Annual Contribution Amount
Input annual deposit up to IRS limit. -
Set Time Horizon & Expected Return
Enter years until retirement and expected return (e.g. 8-10%). -
Calculate Tax-Free Wealth
Click Calculate to view final tax-free nest egg.
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
You May Also Need
Next step: browse the full Retirement calculators or read the related guides for context before you decide.