401(k) Calculator
The 401(k) Calculator can estimate a 401(k) balance at retirement as well as distributions in retirement based on income, contribution percentage, age, salary increase, and investment return. It is mainly intended for use by U.S. residents.
| Current age | |
| Current annual salary | |
| Current 401(k) balance | |
| Contribution (% of salary) | % |
| Employer match | % |
| Employer match limit | % |
| Expected retirement age | |
| Life expectancy | |
| Expected salary increase | % per year |
| Expected annual return | % |
| Expected inflation rate | % per year |
401(k) Retirement Projection
Graph 1: Estimated 401(k) Balance
Graph 2: Employee and Employer Contributions
| Age | Annual Salary | Employee Contribution | Employer Match | Investment Growth | Ending Balance |
|---|
401(k) Early Withdrawal Costs Calculator
Early 401(k) withdrawals will result in a penalty. This calculation can determine the actual amount received if opting for an early withdrawal.
| Early withdrawal amount | |
| Federal income tax rate | % |
| State income tax rate | % |
| Local/city income tax rate | % |
| Are you employed? | |
| Do you have a qualifying disability? | |
| Do you qualify for other penalty exemptions? |
Maximize Employer 401(k) Match Calculator
Contribution percentages that are too low or too high may not take full advantage of employer matching. If the percentage is too high, contributions may reach the IRS limit before the end of the year. This calculation can show the contribution percentage needed to take full advantage of the employer's matching contributions.
| Current age | |
| Current annual salary | |
| Employer match 1 | % |
| Employer match 1 limit | % |
| Employer match 2 | % |
| Employer match 2 limit | % |
What Is a 401(k) Calculator?
A 401(k) calculator is a retirement-planning tool that estimates how a workplace retirement account may grow over time. The calculation can combine a current account balance, annual salary, employee contribution percentage, employer matching contribution, expected salary growth, investment return, and the number of years until retirement. By putting these assumptions together, the calculator gives a useful illustration of how regular contributions and investment growth can interact over a long period.
The value of a projection is not that it predicts the exact future balance. Instead, it helps compare assumptions. Change the contribution percentage, expected return, retirement age, salary growth, or employer match and see how the estimated outcome changes.
How the 401(k) Retirement Projection Works
The projection begins with the current 401(k) balance. Each year, the employee contribution is estimated from annual salary and the selected contribution percentage. An employer match is estimated according to the match percentage and employer match limit. The account then grows according to the expected annual investment return, while salary can increase each year.
For a hypothetical worker, a contribution of 10 percent of salary and an employer match of 50 percent up to 3 percent of salary can be modeled year by year. The actual matching rules of a workplace plan should always be checked before relying on a projection.
Why Employer Matching Matters
An employer match can increase the amount entering a retirement account without requiring the employee to contribute the entire amount. Some plans match a percentage of employee contributions up to a percentage of salary, while others use multiple matching tiers.
How Salary Growth Affects Retirement Savings
If contributions are expressed as a percentage of salary, a larger salary produces larger employee contributions. Salary growth can therefore change both employee savings and employer matching amounts over a long projection.
How Investment Returns Affect a 401(k)
Investment return is a major assumption in long-term retirement projections. A higher assumed return can produce a larger projected balance because growth is repeatedly applied to an account that also receives new contributions. Actual markets can fluctuate, so it is useful to test several assumptions rather than treating one return as guaranteed.
Inflation and Retirement Purchasing Power
Inflation reduces the purchasing power of future dollars. A retirement balance that appears large in nominal terms may buy less than the same amount buys today. The inflation input is provided so users can consider the difference between future dollars and today's purchasing power.
401(k) Early Withdrawal Costs
Taking money from a retirement account before the applicable retirement age can result in taxes and, depending on the circumstances, an additional early-distribution penalty. The early withdrawal section provides a simplified estimate using the entered tax rates and a 10 percent penalty unless a qualifying exemption is selected.
Real tax treatment can be more complicated and depends on individual circumstances and current rules. Verify applicable requirements before making a withdrawal.
How to Maximize an Employer 401(k) Match
A common retirement-saving objective is to contribute enough to receive the full employer match offered by a workplace plan. The match calculator models two employer match tiers and identifies the contribution percentage needed to reach the highest stated matching threshold.
401(k) Contribution Percentage
A contribution percentage determines how much of salary is directed into the retirement plan. A higher percentage can increase retirement savings but can also reduce current take-home pay. Contribution decisions should consider cash flow, emergency savings, debt, taxes, and other retirement accounts.
Retirement Income From a 401(k)
A retirement balance is only one part of retirement planning. After retirement, the account may provide income over many years. The first-year withdrawal shown here is a simplified estimate based on the projected balance and the remaining retirement horizon. Actual withdrawals depend on investment performance, taxes, spending, other income, and longevity.
Limitations of a Retirement Calculator
No retirement calculator can know future investment returns, salary changes, tax laws, inflation, employer policies, or personal spending needs. The further a projection extends, the more important it is to treat the output as a scenario rather than a promise.
401(k) Calculator FAQs
What does this calculator estimate? It estimates how a retirement account may grow from a starting balance, contributions, employer matching, salary changes, and assumed returns.
Are investment returns guaranteed? No. The return entered is only an assumption.
Can this be used for actual tax filing? No. It is an educational estimate and should not replace individualized tax advice.
Why does inflation matter? Inflation can reduce the purchasing power of future retirement dollars.
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