When will you hit your first $100k?
The short answer
Munger's "the first $100k is a bitch" is half motivation, half math. Without much compounding to lean on, contributions do almost all the work. After $100k, growth starts to matter. Pick a weekly contribution, see the year.
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The Munger quote, and what it actually means
At a Berkshire Hathaway meeting in 2003, Charlie Munger said the first $100,000 is "a bitch, but you gotta do it." It became a meme because it sounds harsh. The math behind it is not.
Before you have much capital, market returns are a rounding error. A 7% return on $5,000 is $350. You earn more than that in a single week's pay. So the early years are 90% contribution and 10% growth.
Why contributions dominate the first $100k
Worked example. You start at zero, save $500 a week (about $26,000 a year), and earn a 7% real return. After year one you have roughly $27,000. Of that, $26,000 came from your transfers and only $1,000 from growth.
At year three you cross $85,000. Contributions accounted for about $78,000 of it. Growth: about $7,000. By the time you hit $100k (somewhere in year four), contributions have done roughly 88% of the work. Compounding is barely warmed up.
How to calculate your $100k date
The formula is the same shape as any savings goal. Distance ÷ pace = time. At $500 a week with no return, $100,000 takes 200 weeks. About 3 years, 10 months. Add a 7% return, the date pulls in by roughly 5 months.
If you can only save $250 a week, double the timeline. Eight years to $100k. Still works. It just means starting now is more valuable than starting bigger later.
The shape of the curve from $100k to $1M
Run the same numbers forward. From $100k to $200k at $500/week and 7% takes about 3 years. $200k to $300k takes about 2.5. By the time you're going from $700k to $1M, the market is contributing more than you are. The curve steepens.
This is why investors say "the first $100k is the hardest." It isn't sentiment. It's the point where compounding starts pulling its weight.
Before $100k, you save your way there. After, the money starts saving with you.
The boring middle that breaks most people
Between $30k and $80k, two things tend to happen. The shine wears off and life gets expensive. A wedding, a baby, a job change. The instinct is to pause savings until things settle. They never settle.
The fix is unglamorous. Automate the weekly transfer the day before payday so it leaves before you see it. Then ignore the balance for a year. Compounding is boring on purpose.
Try the calculator
Enter what you have, what you can save weekly, and a realistic return. See your $100k year on the calendar. Then see what adding $50 a week does to the date. Most people are surprised.
