288 free calculators - no signup required

CalcHive: Free Online Calculators for Finance, Health & More

288 professional tools for finance, health, freelancing, and creator analytics - delivering accurate answers instantly, with no account required.

Browse All 288 Tools

288+ Professional Tools0 Signups RequiredPrivacy-FirstUsed Worldwide

No Signup100% FreeInstant ResultsMobile ReadyTrusted Formulas

Popular right now

Mortgage CalculatorBMI CalculatorGPA CalculatorAge CalculatorScientific Calc

401(k) Calculator – Retirement Savings Growth Projection

A 401(k) is the most powerful retirement savings tool available to most American workers — contributions are pre-tax, growth is tax-deferred, and employer matching is essentially free money. Knowing how your balance will grow over time helps you decide how much to contribute and when you can comfortably retire.

This 401(k) calculator projects your account balance at retirement based on your current savings, annual contributions, employer match, expected rate of return, and years until retirement. It breaks down how much of the final balance came from your contributions versus investment growth.

How to use the 401K Calculator

Enter your current 401(k) balance.

Enter your annual salary and contribution percentage.

Enter your employer match percentage and cap.

Set your expected annual return (7% is a common long-term assumption).

Enter your current age and target retirement age.

401(k) Contribution Limits & Employer Match
Year	Employee Limit	Catch-Up (50+)	Total with Catch-Up
2024	$23,000	$7,500	$30,500
2025	$23,500	$7,500	$31,000

401K Calculator FAQ

How does employer matching work?

Your employer matches a percentage of what you contribute, up to a cap. A common match is 50% of contributions up to 6% of salary — meaning you contribute 6%, they add 3%. Always contribute at least enough to get the full match.

What return rate should I use?

7% is a widely used assumption for a diversified stock-heavy 401(k) over a long horizon, based on historical market averages after inflation. Conservative or bond-heavy allocations might use 4–5%.

When should I start contributing?

As early as possible. Starting at 25 versus 35 can result in double the final balance for the same monthly contribution, due to an extra decade of compounding.

Can I contribute to both a 401(k) and an IRA?

Yes. You can max out a 401(k) and still contribute to a traditional or Roth IRA ($7,000 limit in 2024, $8,000 if 50+), subject to income limits for Roth.