How This 401(k) Retirement Calculator Works
This free 401(k) calculator estimates your projected retirement balance by compounding your contributions and employer match month by month at your expected annual return. It is useful for planning how much to save, comparing employer match scenarios, and understanding the long-term impact of starting early.
Retirement Savings Tips
- Start as early as possible — compound interest rewards time more than contribution size.
- Always contribute enough to capture the full employer match. It is free money.
- Increase contributions by 1% each year as your income grows to stay on track for retirement.
401(k) Calculator FAQs
What is a 401(k) and how does this calculator help?
A 401(k) is a tax-advantaged employer-sponsored retirement account. This calculator projects your balance at retirement based on your current savings, monthly contributions, employer match, and expected annual investment return.
How is the employer match calculated?
Enter the employer match as a percentage of your monthly contribution. For example, 50% means your employer adds $250 for every $500 you contribute. The exact match structure varies by employer.
What annual return rate should I use?
A commonly used estimate for a diversified stock-heavy portfolio is 6–8% per year over the long term. Lower rates are more conservative. This calculator does not account for inflation or taxes.