Finance
Millionaire Calculator
Project how long until savings reach $1 million using compound interest with regular monthly contributions. Year-by-year balance breakdown.
Savings plan
Result
36 years and 5 months from today
- Years
- 36.38
- Months
- 436.52
- Total contributed
- $218,260.46
- Growth from interest
- $781,739.54
- Effective annual rate
- 7%
Frequently Asked Questions about the Millionaire Calculator
How long does it take to save $1 million?
It depends on starting balance, monthly contribution, and annual return. From zero with $500 per month at 7 percent annual return (typical long-run stock market), you reach $1M in about 38 years. With $1,000 per month at the same rate, about 28 years. Start earlier and contribute more to compress the timeline.
What return assumption should I use?
A common long-term assumption for a diversified stock-heavy portfolio is 7 percent annual after inflation, or 9 to 10 percent nominal. Bond-heavy portfolios run lower, around 4 to 5 percent nominal. Lower the assumption if you want to be conservative.
Why does compound interest matter so much?
Because returns earn returns. Investing $500 per month for 30 years at 7 percent nets $611,000, but at 10 percent it nets $1,140,000. The 3 percent rate gap nearly doubles the final balance because the extra return compounds across hundreds of months.
What about inflation?
$1 million in 30 years is not the same as $1 million today. At 2.5 percent inflation, $1M in 30 years has the purchasing power of about $477,000 today. Toggle the inflation-adjusted option to see real (after-inflation) growth.
Should I count my home equity?
Most personal finance writers separate liquid investable assets (retirement, brokerage, savings) from home equity when targeting a millionaire net worth. Liquid assets can be spent in retirement; home equity is illiquid unless you sell or borrow against it.