401(k) Calculator
Estimate how your 401(k) could grow based on your current balance, salary, contribution rate, employer match, retirement age, and expected return.
Enter your current age.
Enter the age you plan to retire.
Enter your current 401(k) account balance.
Enter your annual salary before taxes.
Enter the percentage of salary you contribute to your 401(k).
Example: enter 50 if your employer matches 50% of your contributions.
Example: enter 6 if your employer matches contributions up to 6% of salary.
Enter your estimated average annual investment return.
How This Calculator Works
This calculator estimates the future value of your 401(k) by combining your current balance, your annual salary-based contributions, any employer match, and expected investment growth until retirement.
Formula
Future 401(k) Value = Current Balance Growth + Employee Contributions Growth + Employer Match Growth
Example
If you are 35, plan to retire at 65, already have $50,000 in your 401(k), earn $90,000 per year, contribute 6%, receive a 50% employer match up to 6%, and earn an average annual return of 7%, this calculator estimates how much your balance could grow by retirement.
Frequently Asked Questions
What is employer match?
Employer match is the amount your employer contributes to your 401(k) based on your own contributions, often up to a certain percentage of salary.
Should I contribute enough to get the full employer match?
Many people try to contribute at least enough to receive the full employer match because it can significantly increase retirement savings.
Does this include salary increases?
No. This version assumes your salary and contribution rate stay the same. Future raises could increase your actual contributions over time.
Does this account for taxes?
No. This calculator estimates account growth only. It does not calculate taxes on contributions or withdrawals.
What return rate should I use?
Many people use a long-term assumption such as 6% to 8%, but the right estimate depends on your asset mix, risk tolerance, and time horizon.