Millionaire Calculator

Enter what you have invested, what you add each month, and the return you expect. You get the month your balance crosses $1 million, how much of the million came from your own pocket, and what the money buys by then.

Your plan today

%
years
Leave blank to see years instead of an age.

Real-life adjustments

% / yr
% / yr
You cross $1,000,000Age 5626 years 9 months from now, around Jul 2053

At 3% inflation, $1,000,000 then buys what $453,528 buys today.

You deposit
$331,000
Growth adds
$671,278
Growth beats deposits
Year 10 (age 40)
Balance on arrival
$1,002,278
  • Your money 33%
  • Growth 67%

Stops on the way

Dots sit where each balance lands on the timeline. Watch the gaps shrink toward the right.

$100K$250K$500K$750K$1M
  1. $100KAge 35First stop
  2. $250KAge 42+6 yr 3 mo after $100K
  3. $500KAge 48+6 yr 8 mo after $250K
  4. $750KAge 53+4 yr 7 mo after $500K
  5. $1MAge 56+3 yr 5 mo after $750K

Balance by age

  • Balance
  • Your deposits
  • Target

What moves the date

One change at a time, everything else as entered.

ChangeYou arriveShift
Add $100 a monthAge 55, 25 yr 8 mo−1 yr 1 mo
Add $500 a monthAge 52, 22 yr 3 mo−4 yr 6 mo
Earn 1 point more (8%)Age 54, 24 yr 9 mo−2 yr
Earn 1 point less, or pay a 1% fund feeAge 59, 29 yr 2 mo+2 yr 5 mo
Raise deposits 3% every yearAge 53, 23 yr 10 mo−2 yr 11 mo
Add a $10,000 lump sum todayAge 56, 26 yr−9 mo
Year-by-year balance 27 rows
YearAgeDepositedGrowthBalance

The sample plan, line by line

The calculator opens on one plan. A 30-year-old has $10,000 invested, adds $1,000 a month, and earns 7% a year. Here is the story the numbers above tell about this person.

Crosses $1MAge 56
Paid in$331,000
Growth$671,278

Two thirds of the million is growth. Almost none of the growth shows up early.

After 10 years the balance reads $193,181. Deposits make up $130,000 of the total. Ten years of investing has produced $63,181 in growth, less than half the deposits.

Year 10 is also the crossover. The account earns $12,580 in growth during the year, more than the $12,000 deposited. From there, compounding outpaces the paycheck every single year.

Year 20 ends at $561,314. The final $440,000 or so arrives in 6 years 9 months.

Got a statement handy? Put your real balance and monthly transfer in the form. The sample is only a reference point.

Each $250,000 arrives faster than the last

BalanceAgeFrom todayGap from the stop before
$100,000355 yr 10 mofirst stop
$250,0004212 yr 1 mo6 yr 3 mo
$500,0004818 yr 9 mo6 yr 8 mo
$750,0005323 yr 4 mo4 yr 7 mo
$1,000,0005626 yr 9 mo3 yr 5 mo

The first quarter of a million takes 12 years 1 month. The last quarter takes 3 years 5 months, on the same $1,000 a month.

The slow years are where plans break. A statement in year 4 looks flat, a raise goes to a bigger car payment, and the monthly transfer gets cut in half. Drop the sample deposit from $1,000 to $500 at year 5 and the million arrives at 61 instead of 56. Early dollars get the most years to grow, so cutting them costs the most.

Your million, priced 27 years from now

At 3% inflation, $1,000,000 in 26 years 9 months buys what $453,528 buys today. The sample plan makes you a millionaire on paper and a half-millionaire at the grocery store.

Tick Target in today's money and the target rises with prices. Same plan, same 7%: the statement now has to read $3.63 million, and the 30-year-old gets there at 73.

Before you tick the box, decide what your return figure means.

Your return is already after inflation

A real return, such as the 6% to 7% often quoted for a stock-heavy portfolio over long periods. Leave the box off. The answer is in today's money already.

Your return is a headline figure

A nominal return, such as a fund's 10% average. Tick the box, or the million you see is a smaller million than you think.

Ticking the box with a real return counts inflation twice and pushes the date out by decades for no reason. Pick one method per plan.

One percentage point, measured in years

Return is the input people guess with the least care. Here is the sample plan across seven rates.

Yearly returnTime to $1MAgeYou depositFrom growth
4%35 yr 11 mo65$441,00056%
5%32 yr 2 mo62$396,00061%
6%29 yr 2 mo59$360,00064%
7%26 yr 9 mo56$331,00067%
8%24 yr 9 mo54$307,00069%
9%23 yr 1 mo53$287,00071%
10%21 yr 8 mo51$270,00073%

Fund fees live inside this table. A 1% yearly fee turns a 7% market into a 6% account. On the sample plan the fee costs 2 years 5 months. On the day the 7% version crosses a million, the 6% version holds $841,178, a gap of $161,100.

Check the expense ratio before you squeeze the budget for a bigger deposit. The fee is the cheaper fix.

Waiting ten years more than doubles the monthly bill

Same goal for everyone below: $1 million by 65, starting from zero, at 7% a year.

Start atMonthly depositTotal put in by 65
25$381about $183,000
30$555about $233,000
35$820about $295,000
40$1,234about $370,000
45$1,920about $461,000
50$3,155about $568,000
55$5,778about $693,000

The 25-year-old funds the million with $183,000. The 45-year-old needs $461,000 of their own money for the same balance.

A late start with savings in place looks different. A 45-year-old with $150,000 already in a 401(k) needs $757 a month to reach $1 million by 65, less than half the from-zero figure. Enter your current balance before you decide the goal is out of reach.

Inputs, in plain terms

Invested now
Money already in brokerage, retirement, or index fund accounts for this goal. Leave out home equity, cars, and the emergency fund.
Added each month
Everything going in monthly, including an employer 401(k) match.
Yearly return
Average growth per year after fund fees. Pick a real return or a nominal one, never a mix of both.
Raise deposits each year
The yearly bump to the monthly amount. 3% roughly matches pay raises keeping pace with inflation.
Inflation
Feeds the buying-power line under the result and the today's-money target. 3% sits near the long-run US average.

Where this projection flatters you

  • Every year pays the same return. Real markets swing. A 30% drop two years before the target pushes the date out by years, and this page never shows a bad year.
  • No taxes. A taxable brokerage account loses part of each year's dividends and gains to tax. Lower the return to account for drag, or treat the result as a pre-tax balance in a traditional 401(k) or IRA.
  • No missed months. A layoff, a parental leave, or a house down payment all pause deposits. The math assumes decades of uninterrupted transfers.
  • Monthly compounding, deposits at month end. Brokers who model daily growth or deposits at the start of the month land a few months earlier on long plans, not years.
  • Net worth is a different number. A paid-off house counts toward net worth. The house neither compounds at stock-market rates nor pays you an income. Enter invested money only.
  • 100-year horizon. Plans needing longer than a century show as out of range.

Questions from people chasing the first million

How long does it take to become a millionaire saving $500 a month?

Starting from zero at 7% a year, $500 a month reaches $1 million in 36 years 5 months. At $1,000 a month the wait drops to 27 years 7 months, and at $2,000 to 19 years 7 months. Doubling the deposit does not halve the time, because growth does more of the work on long plans.

How much do I need to save each month to be a millionaire by 40?

From age 25 with nothing saved, about $3,155 a month at 7%. Starting at 30 with the same goal by 50 takes about $1,920 a month. Fifteen or twenty years leaves little time for compounding, so deposits carry most of the load.

Is $1 million enough to retire on?

Under the 4% rule, $1 million supports about $40,000 a year of withdrawals before tax. Add Social Security or a pension, then compare the total with what you spend today. If the total falls short, raise the target here or work backward from spending with the FIRE calculator.

Should home equity count toward the million?

For net worth, yes. For this calculator, no. A house does not compound at stock-market rates and pays no income unless sold or rented out. Enter invested money only: brokerage, 401(k), IRA, and similar accounts.

Why does my brokerage show a different date?

Most gaps come from four settings: deposits at the start or end of the month, daily or monthly compounding, a return quoted before or after fees, and whether inflation is already removed from the return. Match those four and the dates usually land within a few months of each other.