Money & Finance · Free tool
Roth IRA Calculator
Estimate your Roth IRA balance at retirement. Assumes post-tax contributions and tax-free withdrawals in retirement.
Final balance
$650,568
You contributed
$185,000
Interest earned
$465,568
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What it does
A Roth IRA calculator. Roth IRA contributions are made with after-tax money, meaning qualified withdrawals in retirement are tax-free — including all the growth. For many people, especially those with decades until retirement, this is the single best retirement account available.
At $500/month (well under the 2026 contribution limit) with 30 years of 7% returns, the balance reaches about $620,000. Every dollar of that is withdrawable tax-free in retirement — no RMDs, no surprise tax bills. Pair with a 401(k) if your employer offers a match.
Example input & output
Input
Current balance: $5,000
Monthly contribution: $500
Annual return: 7%
Years: 30Output
Projected balance: $620,000
Total contributed: $185,000
Growth: $435,000
All withdrawable tax-free in retirementSame contributions in a taxable brokerage would owe capital gains and dividend tax annually and at withdrawal.
How to use it
- Enter your current Roth balance.
- Enter your monthly contribution (up to the annual limit / 12).
- Use 7% as a reasonable long-term return assumption.
- Set years until retirement.
- Read the projected tax-free balance.
When to use this tool
- Annual retirement planning.
- Income below the Roth IRA contribution limit.
- Expecting to be in the same or higher tax bracket in retirement.
When not to use it
- If your income exceeds direct Roth limits — consider a backdoor Roth (different mechanics).
- Traditional IRA or 401(k) analysis (those involve tax deductions now, taxable withdrawals later).
Common use cases
- Planning tax-free retirement income.
- Modeling the value of maxing out Roth contributions each year.
- Comparing Roth IRA vs 401(k) prioritization.
Frequently asked questions
- What’s the Roth IRA contribution limit?
- The IRS adjusts the limit annually. For current year limits and income phase-outs, check IRS Publication 590-A before contributing.
- Can I withdraw Roth IRA contributions before retirement?
- Contributions (not growth) can be withdrawn tax- and penalty-free at any time. Growth withdrawn before age 59½ and 5 years from first contribution is usually taxable and may owe a 10% penalty.