1
Enter Your Timeline
Add your current age, retirement age and existing account balance.
Retirement Savings Projection
401(k) Calculator
Estimate how your current retirement savings, employee contributions, employer match and investment growth could build your projected 401(k) balance by retirement.
Employer match calculation
Salary growth projection
Inflation-adjusted results
Calculate Your 401(k) Growth
Enter your current savings, contribution details and retirement assumptions.
Your 401(k) Projection
Retirement estimate calculated
Projected balance
$0.00
Inflation-adjusted value
$0.00
Your contributions
$0.00
Employer contributions
$0.00
Investment growth
$0.00
Employer match impact
$0.00
Estimated fee impact
$0.00
Illustrative monthly withdrawal
$0.00
Share of projected balance created by
investment growth
0.0%
Enter your retirement assumptions to calculate a projection.
Retirement Planning Tool
What Is a 401(k) Calculator?
A 401(k) calculator estimates how regular workplace retirement contributions may grow over time.
A 401(k) retirement account can receive contributions from your salary, contributions from your employer and investment returns generated by the account balance. Because these amounts can compound for many years, contribution rate and investment duration can have a substantial effect on the final balance.
This calculator begins with your current account balance and simulates monthly employee contributions. It can also estimate an employer match based on the percentage of each eligible contribution that your employer matches and the maximum percentage of salary covered by the matching policy.
Salary growth can increase future contributions, while plan fees reduce the return available for compounding. The inflation-adjusted result estimates the purchasing power of the projected balance in today’s money.
Basic 401(k) Growth Structure
Each monthly contribution is added to the existing balance and grows using the estimated net investment return.
Future Balance = Current Savings + Contributions +
Match + Growth
Calculation Process
How the 401(k) Calculator Works
2
Add Contributions
Enter your salary, contribution percentage and estimated salary growth.
3
Include Employer Match
Add the employer match rate and the salary percentage eligible for matching.
4
Review Your Projection
Compare contributions, employer funding, growth, fees and estimated retirement income.
Important Factors
What Can Affect Your 401(k) Balance?
Employer Matching
Employer contributions may significantly increase the amount entering your retirement account without reducing your salary by the same amount.
Time and Compounding
Contributions made earlier generally have more time to generate returns and compound before retirement.
Plan and Investment Fees
Annual fees may appear small but can reduce long-term results because the deducted money no longer compounds inside the account.
Frequently Asked Questions
401(k) Calculator FAQs
The calculator applies the employer match rate to the portion of your contribution that is eligible for matching. For example, a 50% match up to 6% of salary provides an employer contribution equal to half of the eligible employee contribution.
No. Contribution limits can change and may depend on age and plan rules. You can enter an annual employee contribution cap that applies to your situation, or enter zero to calculate without a cap.
No. Actual returns can vary from year to year and investment values may rise or fall. The annual return entered in the calculator is a planning assumption rather than a guaranteed result.
It estimates what the projected future account balance could be worth in today’s purchasing power after accounting for the inflation rate entered.
The calculator compares a projection using the gross expected return with another projection using the expected return after subtracting the annual plan and fund fee percentage.
It divides the selected annual withdrawal percentage of the projected balance into 12 monthly amounts. It is only a simple illustration and does not guarantee that the account will last for a particular retirement period.
No. The calculator estimates account growth before withdrawal taxes and does not calculate penalties, required distributions, vesting rules or individual tax treatment.
Important:
This calculator provides a mathematical projection based on
constant assumptions. It does not enforce current
contribution limits and does not provide tax, legal,
retirement or investment advice.