Calculate how your 401k will grow with monthly contributions, employer match, and compound returns.
Your Information
Balance at Retirement
$0
Your Contributions
$0
Employer Match
$0
Investment Growth
$0
Years to Retirement
0
Disclaimer: This is an estimate based on your inputs. Actual results will vary based on market performance, contribution changes, and other factors. Not financial advice.
How the 401k Calculator Works
This calculator uses the compound interest formula to project your 401k balance at retirement. It accounts for your current balance, monthly contributions, employer match, and expected investment returns.
The calculation assumes consistent contributions and returns over time. Each month, your balance grows by the monthly return rate, then your contribution and employer match are added. This process repeats for every month until your retirement age.
Maximizing Your 401k
To maximize your retirement savings with a 401k, first ensure you're getting the full employer match—this is essentially free money. Then contribute as much as you can afford, up to the annual contribution limit ($24,500 in 2026). Finally, choose aggressive investments when you're young and shift to conservative as you approach retirement.
Understanding Employer Match
Employer match is a crucial part of your retirement savings. A common match formula is 50% of contributions up to 6% of salary. This means if you contribute 6% of your salary, your employer adds 3% (50% of 6%). If you contribute less, they match proportionally. If you contribute more, you still only get the 3% match.
Frequently Asked Questions
How is employer 401k match calculated?
Most employers match a percentage of your contributions up to a certain limit. A common match is 50% of contributions up to 6% of salary. This means if you earn $100,000 and contribute 6% ($6,000/year), your employer adds 50% of that ($3,000).
What is the 2026 401k contribution limit?
For 2026, the 401k contribution limit is $24,500 for individuals under 50 and $30,500 for those 50 and older with catch-up contributions.
How much return should I assume for my 401k?
Historical stock market returns average around 10% annually. However, a conservative estimate is 7% annually, which accounts for inflation and market volatility. Your actual returns will vary.
Can I change my 401k contribution amount?
Yes, most employers allow you to change your 401k contribution elections during open enrollment or if you experience a life event. You can increase or decrease your contributions at any time.
What happens to my 401k if I change jobs?
When you leave a job, you have several options: leave the money with your former employer, roll it to your new employer's 401k (if they accept), or roll it to a traditional IRA.