How Much Do You Need to Save for Retirement? (With Calculator)
The most common retirement question is also the hardest: how much money do I need to retire? The answer depends on your lifestyle, location, health, and goals. While there's no one-size-fits-all number, there are reliable methods to estimate your target.
The 25× Rule (4% Rule)
The 4% rule suggests you can withdraw 4% of your retirement savings annually without running out of money over a 30-year retirement. To find your target, multiply your desired annual retirement income by 25.
Example: If you need $50,000 per year in retirement: $50,000 × 25 = $1,250,000 target savings.
This rule is a guideline, not a guarantee. Market conditions, inflation, and your actual lifespan all affect whether 4% is sustainable. Many planners now recommend a 3%–3.5% withdrawal rate for added safety, which means you'd need 28–33× your annual expenses.
The 80% Income Replacement Rule
Another common approach: plan to replace 80% of your pre-retirement income. If you earn $80,000 per year, you'd target $64,000 in annual retirement income from savings and Social Security. Multiply by 25, and your savings target is $1.6 million.
Adjusting for Social Security
Don't forget Social Security benefits. The average monthly benefit in 2025 is approximately $1,900. For a couple, that could mean $45,000 or more in annual benefits. Subtract this from your income needs before applying the 25× rule. If you need $64,000 and expect $20,000 from Social Security, you only need to cover $44,000 from savings — a target of $1.1 million.
How Your Savings Rate Determines Your Timeline
Your savings rate — the percentage of income you save — directly determines how long until you can retire:
- Saving 10%: Approximately 45 years to retirement
- Saving 20%: Approximately 35 years to retirement
- Saving 30%: Approximately 25 years to retirement
- Saving 50%: Approximately 15 years to retirement
These estimates assume a 5% real return after inflation. Your actual timeline depends on investment returns and lifestyle changes in retirement.
Use Our Retirement Calculator
Our retirement calculator helps you build a personalized savings plan. Enter your age, current savings, monthly contributions, and desired retirement age to see if you're on track. Pair it with our compound interest calculator to visualize how your savings grow over time.
Conclusion
The best time to start saving for retirement was yesterday. The second best time is today. Use these rules as guidelines, run your numbers through our calculator, and adjust your savings rate to meet your goals.