Plan your retirement savings
Our 401k calculator uses the future value of a series formula: FV = P(1+r)^n + PMT × ((1+r)^n - 1)/r, where P is your current balance, r is the annual return rate, n is years to retirement, and PMT is your annual contribution (including employer match).
Starting early and contributing consistently to your 401k can result in hundreds of thousands more in retirement savings due to compound interest. Employer matching is essentially free money that doubles your contribution impact.
The calculator shows your total estimated balance at retirement, broken down into your contributions, employer match, and investment growth. The monthly income estimate assumes a 4% annual withdrawal rate.
Always contribute at least enough to get the full employer match. Increase contributions when you get raises. Consider Roth 401k options if you expect to be in a higher tax bracket in retirement. Review and rebalance your portfolio annually.
Financial advisors generally recommend contributing at least enough to get your full employer match, as that is essentially free money. Beyond that, aim for 10-15% of your gross income. The IRS contribution limit for 2025 is $23,500 for those under 50, with an additional $7,500 catch-up contribution allowed for those 50 and older.
Employer matching is when your company contributes additional money to your 401(k) based on your own contributions. A common match is 50% of your contributions up to 6% of your salary. For example, if you earn $60,000 and contribute 6% ($3,600), your employer adds $1,800. This is free money that immediately doubles part of your retirement savings.
You can withdraw from your 401(k) without penalty starting at age 59 and a half. Withdrawals before that age typically incur a 10% early withdrawal penalty plus income taxes. Exceptions include hardship withdrawals, the Rule of 55 (leaving your job at 55 or older), and substantially equal periodic payments under IRS Rule 72(t).