Calculator Comparison

401(k) Calculator vs Retirement Calculator

Not sure which calculator to use? Here's a side-by-side comparison of the 401(k) Calculator and Retirement Calculator to help you pick the right one for your needs.

401(k) Calculator

Investment & Retirement

Project your 401(k) balance at retirement including employer matching, contribution limits, and investment growth.

What you enter

Current Age
Retirement Age
Current 401(k) Balance
Annual Salary
Your Contribution (%)
Employer Match (%)
Match Up To (% of salary)
Expected Annual Return

What you get

Projected 401(k) Balance(primary)
Your Total Contributions
Employer Match Total
Investment Growth

Includes visual area chart breakdown

Use 401(k) Calculator

Retirement Calculator

Investment & Retirement

Plan your retirement by calculating how much you need to save based on your desired retirement age, lifestyle, and current savings.

What you enter

Current Age
Retirement Age
Current Savings
Monthly Contribution
Expected Annual Return
Desired Annual Retirement Income

What you get

Projected Savings at Retirement(primary)
Monthly Retirement Income
Total Savings Needed
Surplus / Shortfall

Includes visual area chart breakdown

Use Retirement Calculator

Key Differences

Feature	401(k) Calculator	Retirement Calculator
Category	Investment & Retirement	Investment & Retirement
Inputs	8 required fields	6 required fields
Outputs	4 results	4 results
Chart	area chart	area chart
FAQs	6 answered	6 answered

Input Comparison

Shared Inputs

Current Age
Retirement Age
Expected Annual Return

Only in 401(k) Calculator

Current 401(k) Balance
Annual Salary
Your Contribution (%)
Employer Match (%)
Match Up To (% of salary)

Only in Retirement Calculator

Current Savings
Monthly Contribution
Desired Annual Retirement Income

Which Calculator Should You Use?

Use the 401(k) Calculator if you need to:

Calculate projected 401(k) balance
When you know your current age and retirement age
Want a visual area chart breakdown

Use the Retirement Calculator if you need to:

Calculate projected savings at retirement
When you know your current age and retirement age
Want a visual area chart breakdown

Frequently Asked Questions

Should I contribute enough to get the full employer match?

Yes — always capture the full employer match before anything else. An employer match of 50% up to 6% of salary is an immediate 50% return on investment. No other investment offers guaranteed returns like this. Not capturing the full match is leaving part of your compensation on the table.

What is the 401(k) contribution limit?

For 2024, you can contribute up to $23,000 to a 401(k) if you're under 50. If you're 50 or older, the catch-up contribution limit allows an additional $7,500, for a total of $30,500. These limits apply to your contributions only — employer matches don't count toward your personal limit.

How much do I need to retire?

A widely used rule of thumb is the 4% rule: your retirement nest egg should be 25× your expected annual expenses. If you plan to spend $60,000/year, you need $1.5 million. This assumes a 30-year retirement and a diversified portfolio. Adjust for longer retirements, healthcare costs, and your planned Social Security income.

When should I start saving for retirement?

The earlier the better, due to compound growth. Starting at 25 vs 35 can result in more than double the final balance by retirement age, even with identical monthly contributions, because of the additional decade of compounding. Starting is more important than the amount — even $50/month in your 20s builds a foundation.

Related Comparisons

401(k) Calculator vs Roth IRA Calculator

Investment & Retirement

401(k) Calculator vs Investment Calculator

Investment & Retirement

401(k) Calculator vs Pension Calculator

Investment & Retirement

401(k) Calculator vs Retirement Savings Calculator

Investment & Retirement

Retirement Calculator vs Roth IRA Calculator

Investment & Retirement

Retirement Calculator vs Social Security Calculator

Investment & Retirement

Bottom Line

Choose the 401(k) Calculator if you need to calculate projected 401(k) balance. Use the Retirement Calculator if you need to calculate projected savings at retirement. Both calculators are free and require no sign-up.

Use 401(k) Calculator Use Retirement Calculator

Feature

401(k) Calculator

Retirement Calculator

Use the 401(k) Calculator if you need to:

Calculate projected 401(k) balance
When you know your current age and retirement age
Want a visual area chart breakdown

Use the Retirement Calculator if you need to:

Calculate projected savings at retirement
When you know your current age and retirement age
Want a visual area chart breakdown

Frequently Asked Questions

Should I contribute enough to get the full employer match?

What is the 401(k) contribution limit?

How much do I need to retire?

When should I start saving for retirement?