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401(k) Calculator vs Roth IRA Calculator

Side-by-side comparison to help you choose the right tool for your needs.

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401(k) Calculator

Investment Calculators

Estimate your 401(k) balance at retirement with employer match, contribution limits, and salary growth projections.

Try Tool A
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Roth IRA Calculator

Investment Calculators

Project your Roth IRA's tax-free growth, check income eligibility, and compare Roth vs Traditional IRA strategies.

Try Tool B
Feature401(k) CalculatorRoth IRA Calculator
CategoryInvestment CalculatorsInvestment Calculators
Use CaseEstimate your 401(k) balance at retirement with employer match, contribution limits, and salary growth projections.Project your Roth IRA's tax-free growth, check income eligibility, and compare Roth vs Traditional IRA strategies.

Detailed Comparison

The 401(k) Calculator models pre-tax contributions with employer matching in a traditional 401(k). The Roth IRA Calculator models after-tax contributions that grow and are withdrawn tax-free in retirement. Choosing between them depends on your current vs. expected future tax bracket.

When to use 401(k) Calculator

Use the 401(k) Calculator when your employer offers a match — free money should not be left on the table. It is also better if you expect a lower tax rate in retirement.

When to use Roth IRA Calculator

Use the Roth IRA Calculator if you expect higher taxes in retirement or want tax-free withdrawals. It is especially valuable for younger earners in lower brackets.

The Verdict

Most people benefit from contributing to both: 401(k) up to the employer match, then Roth IRA for tax diversification.

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