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Both calculators run independently — change the inputs on either side to compare results.

Retirement Age Calculator

Estimate the age at which your invested savings will support your target annual retirement income at a given safe withdrawal rate. Iterates forward one year at a time up to age 100.

Current age (years)

Current retirement savings ($)

Monthly contribution ($)

Expected annual return (%)

Target annual retirement income ($)

Safe withdrawal rate (%)

Fill in the required fields to see your result.

Investing

Roth IRA Calculator

Project your Roth IRA's tax-free balance at retirement by combining your existing savings with years of annual contributions compounding at your expected return. Use it to see how much tax-free income you can generate after age 59½.

Current Age (years)

Retirement Age (years)

Current Roth IRA Balance ($)

Annual Contribution ($)

Expected Annual Return (%)

Income Level

Fill in the required fields to see your result.

Key differences

	Retirement Age Calculator	Roth IRA Calculator
Category	Retirement	Investing
Inputs required	6	6
Result	Estimated retirement age (years)	Tax-Free Retirement Balance ($)
What it does	Estimate the age at which your invested savings will support your target annual retirement income at a given safe withdrawal rate. Iterates forward one year at a time up to age 100.	Project your Roth IRA's tax-free balance at retirement by combining your existing savings with years of annual contributions compounding at your expected return. Use it to see how much tax-free income you can generate after age 59½.