Roth IRA Calculator

What is Roth IRA Calculator?

Estimate Roth IRA future value for U.S.-style after-tax retirement account planning.

• Estimate FIRE targets, retirement withdrawals, and retirement cash flow.
• Compare how expenses, savings rate, and return affect retirement timing.
• Create a rough but actionable model for long-term financial independence.

Scope and country basis

English pages are intended for English-speaking markets. Use the country/currency selector for United States, United Kingdom, Canada, Australia, or China where available.

Policy-sensitive results vary by jurisdiction. When a local rule is not implemented, the calculator uses your entered rates, deductions, premiums, or assumptions instead of pretending one country fits all.

What each input means

Current savings

Money field, formatted in the selected currency.

Annual contribution

Money field, formatted in the selected currency.

Annual return

Percentage field: enter 8 for 8%.

Years

Number field: enter the value that matches your scenario.

Formula and interpretation

The core formula is: Future Roth IRA = balance growth + contribution growth. If a country/currency selector is available, money is formatted for that market. Policy-sensitive fields use the selected market where implemented, otherwise they remain user-entered assumptions.

Use the result for first-pass comparison, budgeting, scenario planning, and discussion prep. Before filing taxes, applying for credit, buying insurance, or investing, verify the result against local rules, contracts, and professional advice.

Key concepts

Key inputs for this tool

Roth IRA Calculator mainly depends on Current savings, Annual contribution, Annual return, Years. Keep time period, currency, and definitions consistent before comparing outputs.

Replacement rate

Retirement income often targets a share of pre-retirement spending.

Withdrawal rate

Higher withdrawals increase depletion risk.

Pension assumption

Public, workplace, and personal retirement systems differ by country.

How to read the result

• Read the core Roth IRA Calculator output first, then the supporting metrics and scenarios rather than cherry-picking one favorable number.
• Look first at retirement cash-flow gap.
• Stress-test lower returns, higher inflation, and longer life.
• Separate public pension, workplace plan, personal savings, and insurance.

How to use it

1. Enter savings, contributions, expenses, return, and pension assumptions.
2. Review FIRE target, retirement cash flow, or withdrawal capacity.
3. Adjust expenses, return, and saving pace to compare retirement timing.
4. Before long-term planning, verify pensions, benefits, taxes, and household risks.

Common mistakes

• Treating the 4% rule as a guarantee.
• Ignoring healthcare, long-term care, and inflation.
• Applying U.S. account rules to another country.

Suggested workflow

1. Estimate target spending and income gap.
2. Test savings rate, return, and retirement age.
3. Review with pensions, annuities, personal savings, and insurance.

Method and review boundary

This calculator runs a local estimate from the inputs and formula shown on this page. It does not retrieve live rules, rates, underwriting decisions, or quotes from banks, tax authorities, insurers, or other providers. Last reviewed: July 24, 2026.

For tax, lending, insurance, retirement, investment, or contract decisions, verify official guidance, the relevant agreement, and a formal quote for your location. Use this result to compare scenarios and prepare questions, not as financial, tax, investment, or legal advice.

Official references and applicability

U.S.-specific Roth IRA model. Income eligibility, contribution limits, and distribution rules are not calculated automatically.

• IRS Roth Comparison Chart — Internal Revenue Service
• IRS IRA Contribution Limits — Internal Revenue Service

Sources checked July 24, 2026. Rules and source pages can change; review them again before formal use.

Notes

• Amounts are displayed in the selected currency.
• Enter 35 for a 35% percentage field.
• Tax, insurance, lending, and retirement outputs do not replace official rules, contracts, quotes, or professional advice.

FAQ