Calculator Comparison

Investment Calculator vs Roth IRA Calculator

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

Investment Calculator

Investment & Retirement

Calculate the future value of your investments with compound interest, regular contributions, and various compounding frequencies.

What you enter

Initial Investment
Monthly Contribution
Expected Annual Return
Investment Period
Compounding Frequency

What you get

Future Value(primary)
Total Contributions
Total Interest Earned
Total Return

Includes visual area chart breakdown

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

Input Comparison

Shared Inputs

Expected Annual Return

Only in Investment Calculator

Initial Investment
Monthly Contribution
Investment Period
Compounding Frequency

Only in Roth IRA Calculator

Current Age
Retirement Age
Current Roth IRA Balance
Annual Contribution

Which Calculator Should You Use?

Use the Investment Calculator if you need to:

Calculate future value
When you know your initial investment and monthly contribution
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

What is compound interest?

Compound interest is interest earned on both the original principal and previously accumulated interest. It makes your money grow exponentially over time, which is why starting early is so powerful.

What is a realistic rate of return?

The stock market has historically returned about 10% annually before inflation (7% after). Bonds return 3-5%. A balanced portfolio might expect 6-8% long-term.

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 Investment Calculator if you need to calculate future value. Use the Roth IRA Calculator if you need to calculate projected roth ira balance. Both calculators are free and require no sign-up.

Use Investment Calculator Use Roth IRA Calculator

Feature

Investment Calculator

Roth IRA Calculator

Use the Investment Calculator if you need to:

Calculate future value
When you know your initial investment and monthly contribution
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

What is compound interest?

Compound interest is interest earned on both the original principal and previously accumulated interest. It makes your money grow exponentially over time, which is why starting early is so powerful.

What is a realistic rate of return?

The stock market has historically returned about 10% annually before inflation (7% after). Bonds return 3-5%. A balanced portfolio might expect 6-8% long-term.

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.