401(k) 计算器

使用方法

1. 1
   填写各项

   输入数字或选择所需选项。

2. 2
   查看结果

   更改任何值时，答案会立即更新。

3. 3
   使用结果

   复制结果或记下来。不会向任何地方发送任何内容。

About this tool

Enter your salary, your contribution and your employer match as a percent of pay, your current balance, years to retirement, expected return and yearly pay raise. The calculator adds contributions each year and compounds the balance to show the total at retirement. Figures are for the 2026 tax year and can change. A guide only, check irs.gov or a tax professional.

How it is calculated

Each year the tool adds your contribution and the employer match, both as a share of that year's pay, and grows the balance by the expected return. Pay rises by the raise rate each year. Contributions are assumed to arrive evenly through the year.

Example

On $80,000, with 8 percent saved and a 4 percent match, a $20,000 start and 7 percent return, the balance after 30 years is above $1.6 million, before inflation.

Limits and tips

The 2026 employee deferral limit is $24,500, with extra catch-up contributions from age 50. Always capture the full employer match first, because it is an immediate return. Results are in future dollars and inflation reduces what they buy.

计算示例

With the boxes at their starting values (Current yearly salary ($): 80000; Your contribution (% of pay): 8; Employer match (% of pay): 4; Current balance ($): 20000; Years until retirement: 30; Expected return per year (%): 7), the tool shows: Your contributions ($): 304,483; Employer contributions ($): 152,241; Investment growth ($): 963,473; Total saved in the first year ($): 9,600; Projected balance ($): 1,440,197. Change any box to see your own numbers. The result updates as you type, and nothing leaves your browser.

获得最佳结果的提示

在相信结果之前先检查每一个输入项，因为一个错误的数字就会改变整个答案。请使用工资单、账单、证书或合同上的准确数字，并记下计算日期。税率、门槛和规则会不时变化，因此对于税费和法律事务，请将结果视为估算，并与本页注明的官方来源核对。您可以尝试任意多个方案；不会保存或发送任何内容，刷新页面会清空输入。