That employer 401k match isn't free money — it could be worth hundreds of thousands. Factor in Social Security and inflation to see if you're on track.
FV = P(1 + r)^n + PMT × [((1 + r)^n - 1) / r] (adjusted for inflation: FV_real = FV / (1 + i)^n)The future value (FV) combines the growth of current savings (P) with regular monthly contributions (PMT), both growing at the annual return rate (r) over the number of years to retirement (n). The inflation-adjusted real value divides by (1 + inflation rate)^n to show actual purchasing power.
| Symbol | Meaning |
|---|---|
| FV | Future value of retirement savings |
| P | Current savings balance |
| PMT | Monthly contribution amount |
| r | Expected annual return rate (decimal, e.g., 7% = 0.07) |
| n | Years until retirement |
| i | Annual inflation rate (decimal) |
Our calculations are based on established financial and scientific formulas. The following sources inform the default values and methodology used in this calculator:
Fidelity Investments suggests saving a multiple of your annual salary by certain ages to stay on track for retirement. The benchmarks assume you start saving around age 25, save about 15% of income (including any employer match) each year, and plan to retire around age 67. They are guideposts, not guarantees — your real target depends on your lifestyle, retirement age, and expected expenses in retirement.
| Age | Salary Multiple | Example (Income: $75,000) |
|---|---|---|
| 30 | 1x salary | $75,000 |
| 35 | 2x salary | $150,000 |
| 40 | 3x salary | $225,000 |
| 45 | 4x salary | $300,000 |
| 50 | 6x salary | $450,000 |
| 55 | 7x salary | $525,000 |
| 60 | 8x salary | $600,000 |
| 67 | 10x salary | $750,000 |
Source: Fidelity Viewpoints — "How much do I need to retire?" retirement savings benchmarks by age.
Your employer 401k match is literally free money. Below we compare how different match structures affect your retirement savings over 30 years at 7% annual return, starting with $20,000 saved and a $70,000 salary.
| Match Structure | Annual Match | Your Contribution | Total at Retirement | Match Value |
|---|---|---|---|---|
| No Match | $0 | $6,000 | $610,000 | $0 |
| 50% up to 6% | $2,100 | $8,100 | $830,000 | $220,000 |
| 100% up to 4% | $2,800 | $8,800 | $900,000 | $290,000 |
| 100% up to 6% | $4,200 | $10,200 | $1,040,000 | $430,000 |
| 200% up to 3% | $4,200 | $10,200 | $1,040,000 | $430,000 |
Even a modest 50% match up to 6% of salary adds $220,000 to your retirement over 30 years. Always contribute at least enough to capture the full match — it is an instant 50-100% return on your investment, which no other investment can guarantee.
The 4% rule is the most famous retirement withdrawal guideline: withdraw 4% of your portfolio in your first year of retirement, then adjust for inflation each year. This historically gave a 95%+ success rate over 30-year retirements. However, current market conditions may warrant a more conservative approach.
| Withdrawal Rate | Portfolio Needed ($50k/yr) | Success Rate (30yr) | Risk Level | Best For |
|---|---|---|---|---|
| 3% | $1,666,667 | 99%+ | Very Low | Early retirees, conservative investors |
| 3.5% | $1,428,571 | 97% | Low | Standard retirement, moderate risk tolerance |
| 4% | $1,250,000 | 95% | Moderate | Traditional 30-year retirement |
| 4.5% | $1,111,111 | 85% | Elevated | Shorter retirement, some flexibility |
| 5% | $1,000,000 | 70% | High | Part-time work expected, flexible spending |
| 6% | $833,333 | 50% | Very High | Risk of depleting savings before end of life |
The 4% rule is a good starting point, but your actual safe withdrawal rate depends on your portfolio allocation, retirement length, and willingness to adjust spending. A 3.5% withdrawal rate provides a very high safety margin. For those retiring before 60, consider a 3-3.5% rate to account for a potentially 40-50 year retirement. Use this retirement calculator to model different withdrawal scenarios.
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Rates verified 2026-10-09 · Sourced from official seller fee schedules