Free 401K Calculator Online
Use this free 401K calculator to project your retirement savings based on your salary, contribution rate, employer match, and expected investment returns. See exactly how much your 401(k) could grow between now and retirement.
Balance at Retirement
Enter your details to calculate
How This 401K Calculator Works
This 401K calculator takes your current age, retirement age, annual salary, and contribution percentage to determine how much you save each year. It then adds your employer match — typically 50% or 100% of your contributions up to a set percentage of salary — and applies compound growth at your expected annual return rate.
For example, a 30-year-old earning $75,000 who contributes 10% with a 50% employer match on the first 6% would see annual contributions of $9,750 ($7,500 employee + $2,250 employer). At a 7% return, the 401K calculator projects a balance of roughly $1.4 million by age 65.
The 401K calculator also displays a year-by-year breakdown and an area chart so you can visualize how employer matching and compound growth stack up against your own contributions over the decades.
2024 401(k) Contribution Limits
Combined limits include employee deferrals, employer match, and any after-tax contributions. Use the 401K calculator to see how maxing out contributions accelerates your retirement savings.
3 Keys to Maximizing Your 401(k)
Full Match
Always contribute enough to capture 100% of your employer match. If your company matches 50% of the first 6%, contribute at least 6%. Leaving match money on the table is like turning down a guaranteed 50% return on those dollars — no investment in the market can reliably beat that.
Start Early
Contributing $500/month starting at age 25 yields roughly $1.2 million by age 65 at 7%. Waiting until 35 cuts that to about $567,000 — less than half. Each decade of delay costs you hundreds of thousands in lost compound growth inside your 401(k).
Increase Annually
Boost your contribution rate by 1% each year, especially when you get a raise. Going from 6% to 15% over nine years barely changes your take-home pay but can add $300,000 or more to your 401(k) balance over a full career.
Frequently Asked Questions
Disclaimer: This 401K calculator is for educational and illustrative purposes only. Projections assume a fixed annual return applied consistently, which does not reflect actual market volatility. Tax implications, inflation, and individual circumstances vary. Consult a licensed financial advisor before making retirement plan decisions.
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