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This retirement calculator projects how big your nest egg could grow by the time you retire, based on your current savings, monthly contributions, and expected return — and estimates the monthly income it could provide using the 4% rule.
How to use it
Enter your current age, target retirement age, what you have saved now, your monthly contribution (including any employer match), and an expected annual return. The result is your projected balance and an estimated sustainable monthly income.
How it works
Your current savings compound for the years until retirement, and each monthly contribution compounds from the day you make it. The estimated retirement income uses the 4% rule — withdrawing about 4% of the balance per year is a common starting point for a 30-year retirement.
Related
Retirement Calculator FAQ
How much do I need to retire?
A rough target is 25× your expected annual spending (the flip side of the 4% rule). If you want $50,000/year from savings, aim for about $1.25 million. The calculator shows whether your current plan is on track.
How much will I have if I save $600 a month?
Starting at 35 with $50,000 and adding $600/month at 7% until 65 projects to roughly $900,000. Small increases in contribution or return change the result significantly — try your numbers.
What is the 4% rule?
It suggests you can withdraw about 4% of your retirement savings in year one, then adjust for inflation, with a good chance the money lasts 30 years. The calculator uses it to estimate your monthly retirement income.
What return should I assume for retirement?
Many planners model 6%–7% for a stock-heavy portfolio after inflation, and less as you shift to bonds near retirement. Being conservative here avoids overestimating your nest egg.
Is it too late to start saving for retirement?
No. Even starting later, consistent contributions plus catch-up contributions (allowed after 50) and compounding can build a meaningful balance. The sooner and more you save, the better.
Written by Nicolas William, Lead Financial Editor at Finances News. Estimates for planning only. Last updated 2026.