At What Age Will You Become a Retirement Millionaire?
This calculator projects your combined retirement savings month by month and reports the age at which they first reach $1,000,000, the balance you can expect at your planned retirement age, and the monthly amount that would get you to $1 million by then.
Retirement Savings Benchmarks by Age
Fidelity's widely cited guideline suggests saving these multiples of your salary by each age, aiming for 10× by 67 (it assumes saving 15% of income from age 25 and retiring at 67):
| Age | Savings target | Example ($75K salary) |
|---|---|---|
| 30 | 1× salary | $75,000 |
| 35 | 2× salary | $150,000 |
| 40 | 3× salary | $225,000 |
| 45 | 4× salary | $300,000 |
| 50 | 6× salary | $450,000 |
| 55 | 7× salary | $525,000 |
| 60 | 8× salary | $600,000 |
| 67 | 10× salary | $750,000 |
These are rules of thumb, not requirements. Your own target depends on your expected spending, Social Security, pensions and when you plan to retire.
Where Retirement Wealth Comes From
Tax-advantaged accounts (401(k), 403(b), IRA, Roth). For 2026 the 401(k) employee limit is $24,500 ($32,500 at 50+, $35,750 at 60–63) and the IRA limit is $7,500 ($8,600 at 50+), per the IRS. Employer matches come on top.
Taxable brokerage accounts. No contribution limits or age restrictions; tax-efficient index funds keep the annual tax drag low.
Other assets. Home equity, rental property or a business add to net worth, but they are not as easy to turn into retirement income as investment accounts. This calculator only counts the savings you enter.
Scenarios: When Will You Hit $1 Million?
All at an 8% annual return, monthly compounding:
- Early starter: age 25, $10,000 saved, $600/month → $1 million at about 55 (30 years; $226,000 contributed).
- Mid-career: age 35, $50,000 saved, $750/month → about 59 (24 years 2 months; $267,500 contributed).
- Late bloomer: age 40, $80,000 saved, $1,200/month → about 59 (19 years; $353,600 contributed).
- Aggressive saver: age 30, $50,000 saved, $2,000/month → about 46 (16½ years; $446,000 contributed).
- Catch-up: age 50, $200,000 saved, $2,500/month → about 61 (11 years; $530,000 contributed).
What If You're Behind?
- Raise contributions gradually: increasing your rate by 1 percentage point every six months is hard to notice in take-home pay.
- Save your raises: directing each raise to retirement increases contributions without cutting current spending.
- Use catch-up contributions after 50: an extra $8,000 a year in a 401(k) for 15 years grows to about $231,000 at 8%.
- Invest side income: $500/month for 15 years at 8% grows to about $173,000.
- Work a little longer: each extra year adds contributions and growth and shortens the period your savings must cover. Delaying Social Security past full retirement age also raises your benefit by 8% per year up to age 70.
How Compounding Accelerates by Decade
$500/month at 8%:
- After 10 years: about $91,000 ($60,000 contributed)
- After 20 years: about $295,000 ($120,000 contributed)
- After 30 years: about $745,000 ($180,000 contributed)
- After 40 years: about $1,746,000 ($240,000 contributed)
Growth is about a third of the balance after 10 years and about 86% after 40 years.
Common Mistakes
- Stopping contributions in downturns: those who kept investing through 2008–09 bought at much lower prices.
- Cashing out a 401(k) when changing jobs: $25,000 left invested for 30 years at 8% would grow to about $273,000.
- Too conservative too early: with the default inputs, an 8% return gives about $1.66 million at 65, while 5.5% gives about $945,000.
- Underestimating longevity: plan for your money to last into your 90s.
Making $1 Million Last: The 4% Guideline
- $1 million: about $40,000/year, adjusted for inflation
- $1.5 million: about $60,000/year
- $2 million: about $80,000/year
William Bengen's 1994 research and the 1998 Trinity study found that a 4% initial withdrawal, raised with inflation, lasted 30 years in most (Bengen: all) historical US periods for stock-heavy portfolios. Some retirees use 3–3.5% for longer retirements or extra safety.
Example at $1 million: $40,000/year ($3,333/month) plus the average Social Security retirement benefit of about $2,071/month (2026) is roughly $5,400/month before taxes.