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Both calculators run independently — change the inputs on either side to compare results.

Retirement Savings Calculator

Project the size of your retirement nest egg given your current age, retirement age, monthly contribution, and expected investment return. Use it to test whether your current saving rate is on track for the retirement income you actually want and to see how much more you need to set aside each month to close any gap.

Current Age (years)

Retirement Age (years)

Monthly Contribution ($)

Expected Annual Return (%)

Investing

401k Calculator

Projects your 401(k) balance at retirement by combining your current savings, ongoing contributions, employer match, and expected investment growth. Use it to see whether you are on track and how much employer matching adds to your nest egg.

Current 401k Balance ($)

Annual Salary ($)

Employee Contribution (%)

Employer Match (% of contribution)

Employer Match Limit (% of salary)

Annual Return Rate (%)

Years Until Retirement (years)

Key differences

	Retirement Savings Calculator	401k Calculator
Category	Financial	Investing
Inputs required	4	7
Result	Retirement Savings ($)	401k Balance at Retirement ($)
What it does	Project the size of your retirement nest egg given your current age, retirement age, monthly contribution, and expected investment return. Use it to test whether your current saving rate is on track for the retirement income you actually want and to see how much more you need to set aside each month to close any gap.	Projects your 401(k) balance at retirement by combining your current savings, ongoing contributions, employer match, and expected investment growth. Use it to see whether you are on track and how much employer matching adds to your nest egg.