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Retirement Calculator

Calculate how much you need to retire, track savings milestones, and find your required monthly contribution.

Formula verified by CalcPro.pro Editorial TeamLast updated May 2025

Retirement Planning Details

About This Calculator

Retirement planning is one of the most consequential financial decisions you will ever make. This calculator determines whether your current savings and contributions will fund the retirement lifestyle you want, how large a portfolio you need, and exactly how much more you should save each month if you are behind. It uses the widely accepted 4% safe withdrawal rate, adjusted for your actual retirement duration and inflation.

How to Use This Calculator

  1. 1Enter your current age, target retirement age, and life expectancy
  2. 2Enter your current retirement savings balance
  3. 3Set your monthly retirement account contribution
  4. 4Enter expected annual investment return — 7% reflects the US stock market long-term average after fees
  5. 5Enter your desired annual income in today's dollars
  6. 6Add expected Social Security, state pension, or employer pension income
  7. 7Click Calculate to see your full retirement readiness picture

Formula Used

Portfolio = PV×(1+r)^n + PMT×[(1+r)^n−1]/r | Target = Annual Gap ÷ Real Withdrawal Rate | Real Rate = (1+nominal)/(1+inflation)−1

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FAQ

Frequently Asked Questions

Common questions about the retirement calculator answered.

How much money do I need to retire comfortably?+
The most widely used rule is 25x your annual expenses — based on a 4% safe withdrawal rate. If you need $60,000/year and receive $18,000 from Social Security, you need to fund $42,000 from savings, requiring a $1,050,000 portfolio. Early retirees (under 60) should target 28–33x using a 3–3.5% withdrawal rate to account for longer retirement periods.
What investment return should I use for retirement planning?+
The S&P 500 has returned roughly 10% annually before inflation and 7% after inflation over the long term. For a balanced 70/30 stocks-bonds portfolio, 6–7% is a reasonable planning assumption. Always use net-of-fees returns — a 1% expense ratio on your funds reduces a 7% return to an effective 6% compounded over decades, costing you significantly.
What is the 4% safe withdrawal rule?+
The 4% rule states you can withdraw 4% of your portfolio in year one of retirement, then adjust for inflation annually, with a historically high probability of the money lasting 30 years. For retirements of 40+ years, 3–3.5% is more conservative. This calculator uses 4% as the withdrawal benchmark but computes your target using the more precise present value of annuity formula based on your actual retirement duration.
Should I include Social Security or state pension in this calculator?+
Yes — enter your expected annual benefit. In the US, the SSA website provides a personalized estimate at ssa.gov. In the UK, check your State Pension forecast at gov.uk. In Canada, use CPP estimators at canada.ca. For Australia, factor in your superannuation balance separately as an additional asset. Claiming Social Security at 70 vs 62 can increase your benefit by over 75% in the US.
What if I am significantly behind on retirement savings?+
The most powerful levers are: increasing monthly contributions (an extra $300/month at 7% over 20 years adds $190,000+), delaying retirement by even 2–3 years (reduces withdrawal years and dramatically increases the portfolio), reducing planned retirement expenses, and maximizing tax-advantaged accounts. The required monthly contribution shown in this calculator tells you exactly what you need to contribute to close the gap.

Retirement Savings Benchmarks by Age

Financial planners use salary multiples as benchmarks: save 1x your salary by 30, 3x by 40, 6x by 50, 8x by 60, and 10–12x by retirement. On a $75,000 salary, that means $750,000–$900,000 by 67. Your personal target depends on your desired retirement lifestyle, Social Security income, and retirement age — use this calculator for a precise figure tailored to your situation.

  • Max your 401(k) ($23,000 limit in 2024) or ISA/pension allowance in the UK
  • Always capture the full employer match — it is an instant 50–100% return
  • Roth accounts grow tax-free — especially valuable if you expect higher taxes in retirement
  • Target date funds automatically rebalance as you approach retirement

Retirement Systems: US, UK, Canada and Australia

US workers use 401(k)/IRA accounts plus Social Security. UK workers have ISAs and workplace pensions plus the State Pension (£11,502/year in 2024/25). Canadians have RRSPs, TFSAs, and CPP. Australians benefit from mandatory superannuation — employers contribute 11% of salary. Each system has unique tax advantages. This calculator provides a universal framework applicable across all four countries.

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