How Much Money Do I Need To Retire? A Complete Guide

If you're asking yourself "how much money do I need to retire?", you're not alone. It's one of the most common — and most important — financial questions you'll ever face. The answer depends on several factors: your desired lifestyle, expected healthcare costs, where you plan to live, how long you expect to live, and what age you want to retire.

Fortunately, financial experts have developed several reliable methods to help you estimate your retirement number. In this guide, we'll walk you through each approach so you can determine how much you need to save for a comfortable and secure retirement.

The 4% Rule: The Gold Standard of Retirement Planning

The 4% rule is one of the most widely accepted retirement planning principles. Created by financial planner William Bengen in 1994, this rule states that if you withdraw 4% of your retirement savings in your first year of retirement and adjust that amount for inflation each year thereafter, your money should last at least 30 years.

Bengen analyzed historical market data spanning decades, including the Great Depression, the 1970s stagflation, and multiple bear markets. He found that a portfolio consisting of 50% stocks and 50% bonds never failed to last 30 years when following the 4% withdrawal rate. Subsequent research has largely confirmed his findings, though some experts now suggest a slightly lower withdrawal rate of 3.5% to 4% given current market conditions and longer life expectancies.

The 25x Rule: A Simple Shortcut

The 25x rule is a direct application of the 4% rule. Simply multiply your desired annual retirement income by 25 to determine your target savings amount. This works because 4% is 1/25th of 100%.

Here's how different annual income targets translate to savings goals:

Don't forget to factor in Social Security benefits. The average monthly Social Security benefit in 2026 is approximately $1,900 per person. For a couple, that could mean $45,600 per year in Social Security income alone, which significantly reduces the amount you need to save from your own pocket.

Retirement Savings Goals by Age

Financial services company Fidelity publishes age-based retirement savings guidelines that are widely referenced. These targets assume you want to maintain your current lifestyle in retirement and are saving 15% of your income starting at age 25.

These are general guidelines. Your personal target may be higher or lower depending on your specific circumstances. For example, if you expect significant pension income or plan to work part-time in retirement, you may need less. If you have high healthcare costs or plan to travel extensively, you may need more.

Factors That Affect How Much You Need

1. Your Desired Retirement Lifestyle

Your lifestyle in retirement is the single biggest factor determining how much you need to save. A retirement focused on gardening, reading, and local activities costs far less than one involving international travel, dining out frequently, and expensive hobbies. Be realistic about what you want your retirement to look like and budget accordingly.

2. Healthcare Costs

Healthcare is one of the most significant — and most unpredictable — expenses in retirement. According to Fidelity, the average couple retiring at age 65 in 2026 will need approximately $315,000 to cover healthcare costs throughout retirement. This includes Medicare premiums, deductibles, copayments, and out-of-pocket prescription drug costs. Long-term care is an additional expense that can run $50,000 to $100,000 per year.

3. Inflation

Inflation is often called the silent thief of retirement savings. At a historical average of about 3% per year, inflation cuts your purchasing power in half roughly every 24 years. Your retirement savings need to grow at a rate that outpaces inflation, which is why investing in a diversified portfolio is essential. Simply keeping your savings in cash or low-yield accounts will not be enough.

4. Life Expectancy

Americans are living longer than ever. The average 65-year-old man can expect to live to 84, while a 65-year-old woman can expect to live to 86. Approximately one in three 65-year-olds will live past 90, and one in seven will live past 95. Your retirement savings need to last 20 to 30 years or more, which means you need to plan for a long retirement.

5. Where You Live

Your geographic location has a massive impact on how far your retirement savings will go. States like Florida, Texas, and Nevada have no state income tax, while states like California, New York, and Oregon have high state income taxes. Similarly, the cost of housing, food, and healthcare varies dramatically by region. Many retirees choose to relocate to lower-cost areas to stretch their savings further.

How To Calculate Your Retirement Number

Here's a step-by-step approach to finding your personal retirement number:

1. Estimate your annual retirement expenses. Start with your current expenses and adjust for retirement. You may spend less on commuting, work clothes, and saving — but more on healthcare, travel, and hobbies. A common rule of thumb is that you'll need 70% to 80% of your pre-retirement income.
2. Subtract expected Social Security and pension income. Create an account at ssa.gov to view your estimated Social Security benefits. If you have a pension, include that too. The remaining amount is what you need to cover from your savings.
3. Apply the 25x rule. Multiply your annual income gap by 25. This is your target retirement savings number.
4. Use our free calculator. Enter your current age, retirement age, savings, monthly contributions, and expected returns into our Retirement Calculator to see if you're on track.
5. Adjust and repeat. Review your plan annually and adjust as your circumstances change. Life happens — marriage, children, job changes, health issues — and your retirement plan should evolve with it.

Common Retirement Savings Mistakes to Avoid

Starting Too Late

The power of compound interest means that every year you delay saving, you miss out on exponential growth. Someone who starts saving $500 per month at age 25 will have far more at 65 than someone who starts saving $1,000 per month at age 45 — even though they contributed less total money. The earlier you start, the less you need to save each month to reach your goal.

Underestimating Healthcare Costs

Many retirees underestimate how much they'll spend on healthcare. Medicare covers hospital stays and doctor visits, but it doesn't cover dental, vision, hearing aids, or long-term care. Consider a Medicare Supplement (Medigap) policy and a Part D prescription drug plan. A Health Savings Account (HSA) is an excellent tool if you're still eligible — contributions are tax-deductible, growth is tax-free, and withdrawals for qualified medical expenses are tax-free.

Ignoring Inflation

When you calculate your retirement number, always use inflation-adjusted (real) returns. Our retirement calculator does this automatically by factoring in both your expected return and inflation rate. This gives you a realistic picture of your purchasing power in today's dollars.

Taking Too Much Investment Risk

While growth is important, taking excessive risk close to retirement can be devastating. A major market crash right before or during early retirement can significantly reduce how long your savings last — this is called sequence of returns risk. As you approach retirement, gradually shift toward a more conservative asset allocation to protect your nest egg.

Final Thoughts

There's no one-size-fits-all answer to "how much money do I need to retire?" Your number depends on your unique circumstances, goals, and expectations. But by using the guidelines and tools in this article — especially the 4% rule, the 25x rule, and our free retirement calculator — you can develop a realistic estimate and a clear plan to reach your goal.

The most important step is simply to start. Use our retirement calculator today to see where you stand, then make a plan to close any gap. Your future self will thank you.