Retirement Age Calculator

Calculate when you can retire based on savings, contributions, and retirement goals. See retirement age and years needed.

This calculator projects your retirement savings forward year by year -- compounding Current Savings and adding Monthly Contribution every month at Annual Return Rate -- until the balance reaches a target, then reports how many whole years that takes as Years to Retirement (added to Current Age to get Retirement Age). The target comes from one of two modes, and only one applies at a time: if Retirement Goal is greater than zero, it's used directly as the target. Only when Retirement Goal is left at exactly zero does the calculator fall back to Annual Withdrawal Need, deriving a target using the "25x rule" (a common retirement-planning rule of thumb stating that saving roughly 25 times your desired annual withdrawal supports a ~4% initial withdrawal rate). Because the projection runs in whole-year steps, Retirement Savings (the balance at the moment the target is reached) typically overshoots the target slightly -- the projection only checks the balance once per year, not continuously, so it can cross the goal partway through a year without stopping exactly at it. Total Growth is that overshoot-inclusive balance minus your total contributions (Current Savings plus all monthly deposits made along the way), representing the portion built entirely by investment returns rather than money you put in directly. Two edge cases are worth knowing. If you leave both Retirement Goal and Annual Withdrawal Need at zero there is no target to project toward, so Years to Retirement is 0 and Retirement Age simply equals Current Age. And the projection runs at most 100 years: if your Current Savings, Monthly Contribution and Annual Return Rate can't reach the target inside a century, Years to Retirement reports that 100-year cap and Retirement Savings will come out BELOW your goal -- that pair is a "this target is not reachable on these inputs" signal, not a real retirement date.