Calculator Comparison

Retirement Calculator vs Roth IRA Calculator

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

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

Roth IRA Calculator

Investment & Retirement

Project the growth of your Roth IRA contributions over time and see how tax-free compounding builds your retirement wealth.

What you enter

Current Age
Retirement Age
Current Roth IRA Balance
Annual Contribution
Expected Annual Return

What you get

Projected Roth IRA Balance(primary)
Total Contributions
Tax-Free Growth
Estimated Tax Savings

Includes visual area chart breakdown

Use Roth IRA Calculator

Key Differences

Feature	Retirement Calculator	Roth IRA Calculator
Category	Investment & Retirement	Investment & Retirement
Inputs	6 required fields	5 required fields
Outputs	4 results	4 results
Chart	area chart	area chart
FAQs	6 answered	3 answered

Input Comparison

Shared Inputs

Current Age
Retirement Age
Expected Annual Return

Only in Retirement Calculator

Current Savings
Monthly Contribution
Desired Annual Retirement Income

Only in Roth IRA Calculator

Current Roth IRA Balance
Annual Contribution

Which Calculator Should You Use?

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

Use the Roth IRA Calculator if you need to:

Calculate projected roth ira balance
When you know your current age and retirement age
Want a visual area chart breakdown

Frequently Asked Questions

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.

What is the Roth IRA contribution limit?

For 2026, the annual contribution limit is $7,000 for those under 50 and $8,000 for those 50 and older. Income limits may reduce or eliminate eligibility.

What are the income limits for Roth IRA?

For 2026, single filers can contribute fully if MAGI is under $150,000 and partially up to $165,000. Married filing jointly, the phase-out range is $236,000 to $246,000.

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Bottom Line

Choose the Retirement Calculator if you need to calculate projected savings at retirement. Use the Roth IRA Calculator if you need to calculate projected roth ira balance. Both calculators are free and require no sign-up.

Use Retirement Calculator Use Roth IRA Calculator

Feature

Retirement Calculator

Roth IRA Calculator

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

Use the Roth IRA Calculator if you need to:

Calculate projected roth ira balance
When you know your current age and retirement age
Want a visual area chart breakdown

Frequently Asked Questions

How much do I need to retire?

When should I start saving for retirement?

What is the Roth IRA contribution limit?

For 2026, the annual contribution limit is $7,000 for those under 50 and $8,000 for those 50 and older. Income limits may reduce or eliminate eligibility.

What are the income limits for Roth IRA?

For 2026, single filers can contribute fully if MAGI is under $150,000 and partially up to $165,000. Married filing jointly, the phase-out range is $236,000 to $246,000.