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Utilnivo

Finance

Retirement Calculator

  • Browser-based
  • No signup

Browser-based

Enter your current age, retirement age, current savings, monthly contribution, and expected annual return to project your balance at retirement, total contributions, investment growth, and a simple 4% withdrawal estimate.

Projects savings using constant return and contribution assumptions. Market volatility, taxes, and Social Security are simplified.

How to use this tool

Enter your current age, target retirement age, existing retirement savings, monthly contribution, and expected annual return. Review your projected balance at retirement and the illustrative 4% withdrawal estimate.

Worked example

Example: at age 35 with $50,000 saved, contributing $500/month at a 7% return until age 65 projects a retirement balance of about $680,000, with an illustrative 4% withdrawal of roughly $27,000/year.

How it works

Enter your current age, retirement age, current savings, monthly contribution, and expected annual return. The calculator compounds monthly and assumes contributions are made at the end of each month. Estimated withdrawals use a simple 4% annual rule for illustration only. Inflation, taxes, fees, and contribution changes are not modeled.

Limitations

Projects savings using constant return and contribution assumptions. Market volatility, taxes, and Social Security are simplified.

Privacy and file handling

Your data is processed in your browser and is not uploaded to our server.

Accuracy & methodology

This section documents how the calculator works, what it leaves out, and when results were last reviewed. Figures are educational estimates—not professional advice—and are not labeled "current" unless tied to automatically updated reference data.

Formula source or methodology
Projects nest egg from current savings, monthly contributions, expected return, and years until retirement using periodic compounding.
Jurisdiction
United States (generic accumulation model)
Unit system
US dollars; percent; years
Rounding method
Currency amounts round to two decimal places (half up via Math.round × 100 / 100).
Assumptions
  • Constant average return
  • Fixed monthly savings until retirement
  • No withdrawals before retirement age
Known omissions
  • Not tax, legal, investment, or lending advice. Confirm material decisions with qualified professionals.
  • 2026 IRS contribution limits ($23,500 elective deferral; $7,500 catch-up age 50+; $70,000 combined annual additions under §415(c)) — limits are not enforced in the model
  • Employer match annual caps, true-up provisions, and vesting schedules
  • Plan administrative fees and fund expense ratios
  • Inflation adjustment of future dollars (nominal dollars only unless stated)
  • Income tax on withdrawals (pre-tax vs Roth treatment)
  • Required minimum distributions (RMDs) and early withdrawal penalties
Test cases (automated)
  • Positive savings and horizon produce a projected balance
  • Zero years to retirement is rejected
Version & last verified

Logic version 1.0. Content and formulas last verified .

Frequently asked questions

How is the projected balance calculated?

Current savings grow with monthly compounding, and monthly contributions are added at the end of each month using the standard future-value annuity formula.

What is the 4% rule estimate?

Estimated withdrawals apply 4% of the projected balance per year as a simple planning illustration. It is not financial advice and does not account for inflation, taxes, or market risk.

Are taxes and fees included?

No. Results are estimates based only on savings, contributions, return rate, and time. Taxes, fees, inflation, and contribution changes are not modeled.

Part of these workflows

This tool is one step in a longer job. Follow a workflow guide to see what to do before and after.

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