Project 401(k) balance at retirement with employee contributions, employer match, and compound returns. Enter your current 401k and get ending balance and employer match total instantly — no spreadsheet required.
Step 1. Enter your current 401k in the first field.
Step 2. Fill in employee contribution, employer match to complete the required inputs.
Step 3. The calculator instantly shows Ending Balance, Employer Match Total, Investment Gain based on the formula: FV = B×(1+r)^n + (C+M)×[((1+r)^n−1)/r]; B=current balance, C=employee contribution/period, M=employer match/period, r=periodic return rate, n=total periods.
With the default inputs loaded in the form, the calculator produces a starting result you can use as a baseline. Change one field at a time to compare a new scenario.
The 401k Growth Calculator works by applying the formula: FV = B×(1+r)^n + (C+M)×[((1+r)^n−1)/r]; B=current balance, C=employee contribution/period, M=employer match/period, r=periodic return rate, n=total periods. Each input plays a distinct role — small changes to current 401k can shift ending balance significantly, which is why running multiple scenarios before making a decision is valuable.
To use this calculator effectively, gather accurate values for Current 401K, Employee Contribution, Employer Match, Rate. Estimates are fine for exploration, but the more precise your inputs, the more actionable the output. The calculator instantly returns Ending Balance, Employer Match Total, Investment Gain, giving you a clear picture of where you stand.
This type of retirement calculation is commonly used in real planning scenarios — not just academic exercises. Whether you are comparing options, setting a target, or checking your current position, the 401k Growth Calculator gives you a reliable number to work from. Always revisit the calculation if any input changes significantly.
It calculates ending balance, employer match total, investment gain using the formula FV = B×(1+r)^n + (C+M)×[((1+r)^n−1)/r]; B=current balance, C=employee contribution/period, M=employer match/period, r=periodic return rate, n=total periods. The inputs required are current 401k, employee contribution, employer match, rate.
You need: Current 401K; Employee Contribution; Employer Match; Rate; Years. Use accurate figures from your actual situation for the most useful result.
Results are mathematically precise given the inputs you provide. The formula used is: FV = B×(1+r)^n + (C+M)×[((1+r)^n−1)/r]; B=current balance, C=employee contribution/period, M=employer match/period, r=periodic return rate, n=total periods. Accuracy depends on how precise your input values are — estimates work for planning, but use exact figures for final decisions.
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Disclaimer: Results from this calculator are for informational and planning purposes only and do not constitute financial, legal, or professional advice. Always verify important calculations with a qualified professional.
