Estimate when your retirement savings target could be reached if you keep contributing at a steady monthly pace and earn a consistent average annual return. This page is meant for planning only, and results are estimates.
What This Calculator Estimates
This calculator estimates the age when a target retirement balance may be reached based on a starting balance, fixed monthly contribution, and expected annual return. It is useful for rough timeline planning and for testing how savings changes affect the path to retirement.
Formula / Method Used
The calculator simulates monthly compounding until the target balance is reached:
- Monthly rate = annual return / 12
- Each month, the balance grows by the monthly rate and then the monthly contribution is added
- The process repeats until the target is reached or the simulation limit is hit
Worked Example
Suppose you are 35, already have $85,000 saved, add $800 per month, expect a 6.5% average annual return, and want to reach $1,250,000. The calculator compounds the balance monthly and keeps adding contributions until that target is reached, then estimates the age and years remaining.
What the Result Means
The estimated age shows when your savings target may be reached if your assumptions stay consistent. Years remaining helps you understand the timeline from your current age. Final balance shows the projected balance at the point when the target is reached or when the simulation stops.
Common Mistakes
- Using a return assumption that is too aggressive for the account type.
- Ignoring inflation and future spending needs.
- Assuming contributions will never change over time.
- Forgetting that market returns are not steady from month to month.
Limitations / Disclaimer
This calculator provides estimates only and is not retirement, tax, or investment advice. It assumes a fixed average return and constant monthly contributions. It does not include inflation, taxes, employer match changes, withdrawals, or account fees.
Last updated: May 2026
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Frequently Asked Questions
What does this retirement age calculator estimate?
It estimates the age when your savings target may be reached based on your current balance, monthly contributions, and expected annual return.
What if my target is not reached?
If the target is not reached within the calculator's simulation range, the page shows that the estimate did not reach the goal under the current assumptions.
Does this include inflation or taxes?
No. This estimate focuses on savings growth only and does not include inflation, taxes, fees, or changing contribution patterns.
Are retirement age results guaranteed?
No. Results are estimates based on a fixed return and constant monthly contribution.