Find out if you're on track for retirement. See how much you'll have and whether it's enough.
The most widely used retirement benchmark is the 25x rule: you need 25 times your annual expenses saved to retire comfortably. This is derived from the 4% safe withdrawal rate — the percentage of your portfolio you can withdraw each year without running out of money over a 30-year retirement. If you need $60,000 per year in retirement, you need $1.5 million saved.
The 4% rule was established by financial planner William Bengen in 1994 and has been validated by the Trinity Study. It assumes a portfolio of 50–75% stocks and 25–50% bonds, rebalanced annually. In practice, many financial planners now recommend a 3–3.5% withdrawal rate to account for longer life expectancies and lower expected future returns.
The single most powerful factor in retirement savings is time. A person who invests $500/month starting at age 25 will have approximately $1.4 million at age 65 (assuming 7% annual returns). A person who starts at age 35 with the same $500/month will have only $610,000 — less than half, despite contributing for only 10 fewer years. This is the power of compound interest.
| Start Age | Monthly Contribution | Total Contributed | Balance at 65 |
|---|---|---|---|
| 25 | $500 | $240,000 | $1,396,000 |
| 30 | $500 | $210,000 | $985,000 |
| 35 | $500 | $180,000 | $681,000 |
| 40 | $500 | $150,000 | $456,000 |
| 45 | $500 | $120,000 | $292,000 |
Assumes 7% annual return, compounded monthly.
The most tax-advantaged way to save for retirement in the United States is through employer-sponsored and individual retirement accounts. A 401(k) allows you to contribute up to $23,000 per year (2024 limit) pre-tax, reducing your taxable income today. Many employers match contributions up to 3–6% of salary — this is free money that should always be captured first. A Roth IRA allows after-tax contributions of up to $7,000 per year, with tax-free withdrawals in retirement — ideal if you expect to be in a higher tax bracket later.
The optimal strategy for most people is: (1) contribute to 401(k) up to the employer match, (2) max out a Roth IRA, (3) return to 401(k) to max the annual limit, (4) invest any remaining savings in a taxable brokerage account.
The Retirement Calculator is a free online tool that projects your retirement savings, estimates your retirement age, and helps you understand whether you are on track to retire comfortably. With 49,000 monthly searches, retirement planning is one of the most important financial calculations you will ever make. This calculator uses your current savings, monthly contributions, expected investment returns, and desired retirement income to give you a clear picture of your retirement readiness — and what you need to do to improve it.
Enter your current age and desired retirement age.
Enter your current retirement savings balance (pension pot, 401k, ISA, etc.).
Enter your monthly contribution to retirement savings.
Enter the expected annual investment return (typically 5–7% for a balanced portfolio).
Enter your desired monthly income in retirement.
The calculator projects your retirement pot, monthly income, and whether you will have enough.
The most widely used retirement planning rule is the 4% safe withdrawal rate, derived from the Trinity Study. This rule states that you can withdraw 4% of your retirement portfolio annually without running out of money over a 30-year retirement, based on historical market performance. This means you need 25x your annual retirement expenses saved (1/0.04 = 25).
For a retirement income of £30,000/year, you need £750,000 saved. For £40,000/year, £1,000,000. For £50,000/year, £1,250,000. These figures assume you will invest your retirement savings in a diversified portfolio and draw it down over approximately 30 years.
In the UK, the State Pension provides a foundation of approximately £10,600/year (2024/25) for those with 35+ qualifying National Insurance years. This reduces the amount you need to save privately. If your target retirement income is £30,000/year and the State Pension provides £10,600, you need to fund £19,400/year from private savings — requiring approximately £485,000 in private pension savings.
The most powerful retirement savings strategies leverage tax relief and employer contributions. In the UK, pension contributions receive income tax relief at your marginal rate — a basic rate taxpayer contributing £80 has £100 added to their pension (20% tax relief). Higher rate taxpayers can claim an additional 20% through self-assessment, making pension contributions extraordinarily tax-efficient.
Employer pension matching is essentially free money — always contribute at least enough to capture the full employer match. If your employer matches 5% of salary, contributing less than 5% is leaving part of your salary on the table.
For self-employed people and those without workplace pensions, a Stocks and Shares ISA provides tax-free investment growth and withdrawals, with an annual allowance of £20,000. While ISA contributions do not receive upfront tax relief like pensions, withdrawals are completely tax-free, making ISAs particularly valuable for early retirees who may retire before pension access age (currently 57 in the UK).
Employer pension matching is a guaranteed 50–100% return on your contribution. Never contribute less than the amount needed to capture the full employer match.
Due to compound growth, starting pension contributions at 25 instead of 35 can more than double your retirement pot. Every year of delay has an exponentially increasing cost.
When you receive a salary increase, immediately increase your pension contribution by the same percentage. This prevents lifestyle inflation and dramatically accelerates retirement savings.
Pension fees compound just like returns — but in reverse. A 1% annual fee on a £200,000 pension costs approximately £60,000 over 20 years. Choose low-cost pension providers and index funds.
The average UK worker has 11 jobs in their lifetime, often leaving small pension pots with each employer. Consolidating these into a single low-cost pension simplifies management and may reduce fees.
Review your retirement projection at least annually and after any major life change (salary increase, marriage, children, house purchase). Adjust contributions as needed to stay on track.